cvelistv5 - cve-2023-4966

cve-2023-4966

Vulnerability from cvelistv5

Published

2023-10-10 13:12

Modified

2024-08-02 07:44

Severity ?

9.4 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Summary

Sensitive information disclosure in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA  virtual server.

References

URL	Tags
secure@citrix.com	http://packetstormsecurity.com/files/175323/Citrix-Bleed-Session-Token-Leakage-Proof-Of-Concept.html	Third Party Advisory, VDB Entry
secure@citrix.com	https://support.citrix.com/article/CTX579459	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	http://packetstormsecurity.com/files/175323/Citrix-Bleed-Session-Token-Leakage-Proof-Of-Concept.html	Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108	https://support.citrix.com/article/CTX579459	Vendor Advisory

Impacted products

Vendor

Product

Version

▼

Citrix

NetScaler ADC 

Version: 14.1
Version: 13.1
Version: 13.0
Version: 13.1-FIPS
Version: 12.1-FIPS
Version: 12.1-NDcPP

Citrix

NetScaler Gateway

Version: 14.1
Version: 13.1
Version: 13.0

CISA Known exploited vulnerability

Data from the Known Exploited Vulnerabilities Catalog

Date added: 2023-10-18

Due date: 2023-11-08

Required action: Apply mitigations and kill all active and persistent sessions per vendor instructions [https://www.netscaler.com/blog/news/cve-2023-4966-critical-security-update-now-available-for-netscaler-adc-and-netscaler-gateway/] OR discontinue use of the product if mitigations are unavailable.

Used in ransomware: Known

Notes: https://www.netscaler.com/blog/news/cve-2023-4966-critical-security-update-now-available-for-netscaler-adc-and-netscaler-gateway/, https://support.citrix.com/article/CTX579459/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20234966-and-cve20234967 ; https://nvd.nist.gov/vuln/detail/CVE-2023-4966

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T07:44:53.522Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://support.citrix.com/article/CTX579459"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/175323/Citrix-Bleed-Session-Token-Leakage-Proof-Of-Concept.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "NetScaler ADC\u202f",
          "vendor": "Citrix",
          "versions": [
            {
              "lessThan": "8.50",
              "status": "affected",
              "version": "14.1",
              "versionType": "patch"
            },
            {
              "lessThan": "49.15",
              "status": "affected",
              "version": "13.1",
              "versionType": "patch"
            },
            {
              "lessThan": "92.19",
              "status": "affected",
              "version": "13.0",
              "versionType": "patch"
            },
            {
              "lessThan": "37.164",
              "status": "affected",
              "version": "13.1-FIPS",
              "versionType": "patch"
            },
            {
              "lessThan": "55.300",
              "status": "affected",
              "version": "12.1-FIPS",
              "versionType": "patch"
            },
            {
              "lessThan": "55.300",
              "status": "affected",
              "version": "12.1-NDcPP",
              "versionType": "patch"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "NetScaler Gateway",
          "vendor": "Citrix",
          "versions": [
            {
              "lessThan": "8.50",
              "status": "affected",
              "version": "14.1",
              "versionType": "patch"
            },
            {
              "lessThan": "49.15",
              "status": "affected",
              "version": "13.1",
              "versionType": "patch"
            },
            {
              "lessThan": "92.19",
              "status": "affected",
              "version": "13.0",
              "versionType": "patch"
            }
          ]
        }
      ],
      "datePublic": "2023-10-10T12:33:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cb\u003e\u003cp\u003e\u003cb\u003e\u003cspan style=\"background-color: transparent;\"\u003eSensitive information disclosure\u0026nbsp;\u003c/span\u003e\u003c/b\u003e\u003cspan style=\"background-color: var(--wht);\"\u003ein NetScaler ADC and NetScaler Gateway when configured as a\u0026nbsp;\u003c/span\u003e\u003cspan style=\"background-color: transparent;\"\u003eGateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy)\u0026nbsp;\u003c/span\u003e\u003cspan style=\"background-color: transparent;\"\u003eor\u0026nbsp;\u003c/span\u003e\u003cspan style=\"background-color: transparent;\"\u003eAAA \u202fvirtual\u202fserver.\u0026nbsp;\u003c/span\u003e\u003cspan style=\"background-color: transparent;\"\u003e\u003cbr\u003e\u003c/span\u003e\u003cspan style=\"background-color: var(--wht);\"\u003e\u003cbr\u003e\u003c/span\u003e\u003c/p\u003e\u003c/b\u003e"
            }
          ],
          "value": "Sensitive information disclosure\u00a0in NetScaler ADC and NetScaler Gateway when configured as a\u00a0Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy)\u00a0or\u00a0AAA \u202fvirtual\u202fserver.\u00a0\n\n\n\n"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 9.4,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-10-10T13:12:29.552Z",
        "orgId": "e437aed5-38e0-4fa3-a98b-cb73e7acaec6",
        "shortName": "Citrix"
      },
      "references": [
        {
          "url": "https://support.citrix.com/article/CTX579459"
        },
        {
          "url": "http://packetstormsecurity.com/files/175323/Citrix-Bleed-Session-Token-Leakage-Proof-Of-Concept.html"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Unauthenticated sensitive information disclosure",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "e437aed5-38e0-4fa3-a98b-cb73e7acaec6",
    "assignerShortName": "Citrix",
    "cveId": "CVE-2023-4966",
    "datePublished": "2023-10-10T13:12:17.644Z",
    "dateReserved": "2023-09-14T15:51:21.569Z",
    "dateUpdated": "2024-08-02T07:44:53.522Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "cisa_known_exploited": {
      "cveID": "CVE-2023-4966",
      "cwes": "[\"CWE-119\"]",
      "dateAdded": "2023-10-18",
      "dueDate": "2023-11-08",
      "knownRansomwareCampaignUse": "Known",
      "notes": "https://www.netscaler.com/blog/news/cve-2023-4966-critical-security-update-now-available-for-netscaler-adc-and-netscaler-gateway/, https://support.citrix.com/article/CTX579459/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20234966-and-cve20234967 ;  https://nvd.nist.gov/vuln/detail/CVE-2023-4966",
      "product": "NetScaler ADC and NetScaler Gateway",
      "requiredAction": "Apply mitigations and kill all active and persistent sessions per vendor instructions [https://www.netscaler.com/blog/news/cve-2023-4966-critical-security-update-now-available-for-netscaler-adc-and-netscaler-gateway/] OR discontinue use of the product if mitigations are unavailable.",
      "shortDescription": "Citrix NetScaler ADC and NetScaler Gateway contain a buffer overflow vulnerability that allows for sensitive information disclosure when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server.",
      "vendorProject": "Citrix",
      "vulnerabilityName": "Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-4966\",\"sourceIdentifier\":\"secure@citrix.com\",\"published\":\"2023-10-10T14:15:10.977\",\"lastModified\":\"2024-11-21T08:36:21.617\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Sensitive information disclosure\u00a0in NetScaler ADC and NetScaler Gateway when configured as a\u00a0Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy)\u00a0or\u00a0AAA \u202fvirtual\u202fserver.\u00a0\\n\\n\\n\\n\"},{\"lang\":\"es\",\"value\":\"Divulgaci\u00f3n de informaci\u00f3n confidencial en NetScaler ADC y NetScaler Gateway cuando se configura como Gateway (servidor virtual VPN, ICA Proxy, CVPN, RDP Proxy) o servidor \\\"virtual\\\" AAA.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@citrix.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L\",\"baseScore\":9.4,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":5.5},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}]},\"cisaExploitAdd\":\"2023-10-18\",\"cisaActionDue\":\"2023-11-08\",\"cisaRequiredAction\":\"Apply mitigations and kill all active and persistent sessions per vendor instructions [https://www.netscaler.com/blog/news/cve-2023-4966-critical-security-update-now-available-for-netscaler-adc-and-netscaler-gateway/] OR discontinue use of the product if mitigations are unavailable.\",\"cisaVulnerabilityName\":\"Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability\",\"weaknesses\":[{\"source\":\"secure@citrix.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-119\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*\",\"versionStartIncluding\":\"12.1\",\"versionEndExcluding\":\"12.1-55.300\",\"matchCriteriaId\":\"492BEB4B-7A4B-47C2-93D1-2B0683AA3A20\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*\",\"versionStartIncluding\":\"12.1\",\"versionEndExcluding\":\"12.1-55.300\",\"matchCriteriaId\":\"81EF12C2-4197-4C0D-BE11-556F05DAD646\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"13.0\",\"versionEndExcluding\":\"13.0-92.19\",\"matchCriteriaId\":\"9EEC53B2-686A-4C6F-98DE-5D6AE804B0A8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*\",\"versionStartIncluding\":\"13.1\",\"versionEndExcluding\":\"13.1-37.164\",\"matchCriteriaId\":\"109301A8-9ADD-4A49-9C45-D21A4DA840E9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"13.1\",\"versionEndExcluding\":\"13.1-49.15\",\"matchCriteriaId\":\"5C1739C5-48C1-46BC-A524-B4CC4C5B6436\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"14.1\",\"versionEndExcluding\":\"14.1-8.50\",\"matchCriteriaId\":\"9148C36D-98B4-4166-8B9A-449EA86BA4B1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"13.0\",\"versionEndExcluding\":\"13.0-92.19\",\"matchCriteriaId\":\"5FB1412D-F8D8-4592-A8A9-C1B841B93D5E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"13.1\",\"versionEndExcluding\":\"13.1-49.15\",\"matchCriteriaId\":\"28A08B32-D145-499F-866E-BEEEDEBB2901\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"14.1\",\"versionEndExcluding\":\"14.1-8.50\",\"matchCriteriaId\":\"4F1610E6-FE48-4339-8E74-765E0517E33D\"}]}]}],\"references\":[{\"url\":\"http://packetstormsecurity.com/files/175323/Citrix-Bleed-Session-Token-Leakage-Proof-Of-Concept.html\",\"source\":\"secure@citrix.com\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://support.citrix.com/article/CTX579459\",\"source\":\"secure@citrix.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://packetstormsecurity.com/files/175323/Citrix-Bleed-Session-Token-Leakage-Proof-Of-Concept.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://support.citrix.com/article/CTX579459\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

cve-2023-4966

Vulnerability from cvelistv5

CISA Known exploited vulnerability

Data from the Known Exploited Vulnerabilities Catalog

gsd-2023-4966

Vulnerability from gsd

ghsa-2g42-2pwg-93cj

Vulnerability from github

wid-sec-w-2023-2605

Vulnerability from csaf_certbund

Tags

Sightings

Nomenclature