Vulnerability-Lookup

CNVD-2020-28991

Vulnerability from cnvd - Published: 2020-05-20

Title

FreeRDP输入验证错误漏洞

Description

FreeRDP是FreeRDP团队的一款开源的远程桌面协议（RDP）的实现。 FreeRDP存在输入验证错误漏洞。该漏洞源于网络系统或产品未对输入的数据进行正确的验证。攻击者可利用该漏洞越界读取。

Severity

中

Patch Name

FreeRDP输入验证错误漏洞的补丁

Patch Description

FreeRDP是FreeRDP团队的一款开源的远程桌面协议（RDP）的实现。 FreeRDP存在输入验证错误漏洞。该漏洞源于网络系统或产品未对输入的数据进行正确的验证。攻击者可利用该漏洞越界读取。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/FreeRDP/FreeRDP/commit/192856cb59974ee4d7d3e72cbeafa676aa7565cf

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-11526

Impacted products

Name
FreeRDP FreeRDP >1.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-11526"
    }
  },
  "description": "FreeRDP\u662fFreeRDP\u56e2\u961f\u7684\u4e00\u6b3e\u5f00\u6e90\u7684\u8fdc\u7a0b\u684c\u9762\u534f\u8bae\uff08RDP\uff09\u7684\u5b9e\u73b0\u3002\n\nFreeRDP\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u672a\u5bf9\u8f93\u5165\u7684\u6570\u636e\u8fdb\u884c\u6b63\u786e\u7684\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8d8a\u754c\u8bfb\u53d6\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/FreeRDP/FreeRDP/commit/192856cb59974ee4d7d3e72cbeafa676aa7565cf",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-28991",
  "openTime": "2020-05-20",
  "patchDescription": "FreeRDP\u662fFreeRDP\u56e2\u961f\u7684\u4e00\u6b3e\u5f00\u6e90\u7684\u8fdc\u7a0b\u684c\u9762\u534f\u8bae\uff08RDP\uff09\u7684\u5b9e\u73b0\u3002\r\n\r\nFreeRDP\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u672a\u5bf9\u8f93\u5165\u7684\u6570\u636e\u8fdb\u884c\u6b63\u786e\u7684\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8d8a\u754c\u8bfb\u53d6\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "FreeRDP\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "FreeRDP FreeRDP \u003e1.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-11526",
  "serverity": "\u4e2d",
  "submitTime": "2020-05-18",
  "title": "FreeRDP\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2020-11526 (GCVE-0-2020-11526)

Vulnerability from cvelistv5 – Published: 2020-05-15 16:18 – Updated: 2024-08-04 11:35

Summary

libfreerdp/core/update.c in FreeRDP versions > 1.1 through 2.0.0-rc4 has an Out-of-bounds Read.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

7 references

URL	Tags
https://github.com/FreeRDP/FreeRDP/commits/master	x_refsource_MISC
https://github.com/FreeRDP/FreeRDP/security/advis…	x_refsource_CONFIRM
https://pub.freerdp.com/cve/CVE-2020-11526/pocAna…	x_refsource_CONFIRM
https://usn.ubuntu.com/4379-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4382-1/	vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T11:35:12.877Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/FreeRDP/FreeRDP/commits/master"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-97jw-m5w5-xvf9"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://pub.freerdp.com/cve/CVE-2020-11526/pocAnalysis_4.pdf"
          },
          {
            "name": "USN-4379-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4379-1/"
          },
          {
            "name": "USN-4382-1",
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            ],
            "url": "https://usn.ubuntu.com/4382-1/"
          },
          {
            "name": "openSUSE-SU-2020:1090",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html"
          },
          {
            "name": "[debian-lts-announce] 20200829 [SECURITY] [DLA 2356-1] freerdp security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00054.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "libfreerdp/core/update.c in FreeRDP versions \u003e 1.1 through 2.0.0-rc4 has an Out-of-bounds Read."
        }
      ],
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        {
          "descriptions": [
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      "providerMetadata": {
        "dateUpdated": "2020-08-30T01:06:13.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/FreeRDP/FreeRDP/commits/master"
        },
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          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-97jw-m5w5-xvf9"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://pub.freerdp.com/cve/CVE-2020-11526/pocAnalysis_4.pdf"
        },
        {
          "name": "USN-4379-1",
          "tags": [
            "vendor-advisory",
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          "url": "https://usn.ubuntu.com/4379-1/"
        },
        {
          "name": "USN-4382-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4382-1/"
        },
        {
          "name": "openSUSE-SU-2020:1090",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html"
        },
        {
          "name": "[debian-lts-announce] 20200829 [SECURITY] [DLA 2356-1] freerdp security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00054.html"
        }
      ],
      "x_legacyV4Record": {
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-11526",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
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                  "product_data": [
                    {
                      "product_name": "n/a",
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        "references": {
          "reference_data": [
            {
              "name": "https://github.com/FreeRDP/FreeRDP/commits/master",
              "refsource": "MISC",
              "url": "https://github.com/FreeRDP/FreeRDP/commits/master"
            },
            {
              "name": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-97jw-m5w5-xvf9",
              "refsource": "CONFIRM",
              "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-97jw-m5w5-xvf9"
            },
            {
              "name": "https://pub.freerdp.com/cve/CVE-2020-11526/pocAnalysis_4.pdf",
              "refsource": "CONFIRM",
              "url": "https://pub.freerdp.com/cve/CVE-2020-11526/pocAnalysis_4.pdf"
            },
            {
              "name": "USN-4379-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4379-1/"
            },
            {
              "name": "USN-4382-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4382-1/"
            },
            {
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              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html"
            },
            {
              "name": "[debian-lts-announce] 20200829 [SECURITY] [DLA 2356-1] freerdp security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00054.html"
            }
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    "dateUpdated": "2024-08-04T11:35:12.877Z",
    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.