GSD-2020-9498

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
Apache Guacamole 1.1.0 and older may mishandle pointers involved inprocessing data received via RDP static virtual channels. If a userconnects to a malicious or compromised RDP server, a series ofspecially-crafted PDUs could result in memory corruption, possiblyallowing arbitrary code to be executed with the privileges of therunning guacd process.
Aliases
Aliases
CVE-2020-9498
To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-9498",
    "description": "Apache Guacamole 1.1.0 and older may mishandle pointers involved inprocessing data received via RDP static virtual channels. If a userconnects to a malicious or compromised RDP server, a series ofspecially-crafted PDUs could result in memory corruption, possiblyallowing arbitrary code to be executed with the privileges of therunning guacd process.",
    "id": "GSD-2020-9498",
    "references": [
      "https://advisories.mageia.org/CVE-2020-9498.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-9498"
      ],
      "details": "Apache Guacamole 1.1.0 and older may mishandle pointers involved inprocessing data received via RDP static virtual channels. If a userconnects to a malicious or compromised RDP server, a series ofspecially-crafted PDUs could result in memory corruption, possiblyallowing arbitrary code to be executed with the privileges of therunning guacd process.",
      "id": "GSD-2020-9498",
      "modified": "2023-12-13T01:21:53.088931Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@apache.org",
        "ID": "CVE-2020-9498",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Apache Guacamole",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "Apache Guacamole 1.1.0 and older"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
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          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Expired Pointer Dereference"
              }
            ]
          }
        ]
      },
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          {
            "name": "https://lists.apache.org/thread.html/rff824b38ebd2fddc726b816f0e509696b83b9f78979d0cd021ca623b%40%3Cannounce.guacamole.apache.org%3E",
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            "url": "https://lists.apache.org/thread.html/rff824b38ebd2fddc726b816f0e509696b83b9f78979d0cd021ca623b%40%3Cannounce.guacamole.apache.org%3E"
          },
          {
            "name": "[announce] 20200701 [SECURITY] CVE-2020-9498: Apache Guacamole: Dangling pointer in RDP static virtual channel handling",
            "refsource": "MLIST",
            "url": "https://lists.apache.org/thread.html/r26fb170edebff842c74aacdb1333c1338f0e19e5ec7854d72e4680fc@%3Cannounce.apache.org%3E"
          },
          {
            "name": "https://research.checkpoint.com/2020/apache-guacamole-rce/",
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            "url": "https://research.checkpoint.com/2020/apache-guacamole-rce/"
          },
          {
            "name": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44525",
            "refsource": "CONFIRM",
            "url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44525"
          },
          {
            "name": "[debian-lts-announce] 20201106 [SECURITY] [DLA 2435-1] guacamole-server security update",
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TVV5K2X4EXSAVUUL7IJ3MUJ3ADWMVSBM/"
          },
          {
            "name": "FEDORA-2020-640645e518",
            "refsource": "FEDORA",
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          },
          {
            "name": "[announce] 20210125 Apache Software Foundation Security Report: 2020",
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          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "(,1.1.0]",
          "affected_versions": "All versions up to 1.1.0",
          "cvss_v2": "AV:L/AC:H/Au:N/C:C/I:C/A:C",
          "cvss_v3": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-119",
            "CWE-937"
          ],
          "date": "2021-07-21",
          "description": "Apache Guacamole mishandles pointers involved in processing data received via RDP static virtual channels. If a user connects to a malicious or compromised RDP server, a series ofspecially-crafted PDUs could result in memory corruption, possibly allowing arbitrary code to be executed with the privileges of the running guacd process.",
          "fixed_versions": [
            "1.3.0"
          ],
          "identifier": "CVE-2020-9498",
          "identifiers": [
            "CVE-2020-9498"
          ],
          "not_impacted": "All versions after 1.1.0",
          "package_slug": "maven/org.apache.guacamole/guacamole-common",
          "pubdate": "2020-07-02",
          "solution": "Upgrade to version 1.3.0 or above.",
          "title": "Improper Restriction of Operations within the Bounds of a Memory Buffer",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-9498"
          ],
          "uuid": "d3603d1a-e3eb-46a8-84e5-88598ee35fb6"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
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                "cpe23Uri": "cpe:2.3:a:apache:guacamole:*:*:*:*:*:*:*:*",
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                "versionEndIncluding": "1.1.0",
                "vulnerable": true
              }
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            "children": [],
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          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
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          }
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      },
      "cve": {
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          "ID": "CVE-2020-9498"
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        "description": {
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              "value": "Apache Guacamole 1.1.0 and older may mishandle pointers involved inprocessing data received via RDP static virtual channels. If a userconnects to a malicious or compromised RDP server, a series ofspecially-crafted PDUs could result in memory corruption, possiblyallowing arbitrary code to be executed with the privileges of therunning guacd process."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-787"
                }
              ]
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://lists.apache.org/thread.html/rff824b38ebd2fddc726b816f0e509696b83b9f78979d0cd021ca623b%40%3Cannounce.guacamole.apache.org%3E",
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            },
            {
              "name": "[announce] 20200701 [SECURITY] CVE-2020-9498: Apache Guacamole: Dangling pointer in RDP static virtual channel handling",
              "refsource": "MLIST",
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              "url": "https://lists.apache.org/thread.html/r26fb170edebff842c74aacdb1333c1338f0e19e5ec7854d72e4680fc@%3Cannounce.apache.org%3E"
            },
            {
              "name": "https://research.checkpoint.com/2020/apache-guacamole-rce/",
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              ],
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            },
            {
              "name": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44525",
              "refsource": "CONFIRM",
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              ],
              "url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44525"
            },
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              "name": "[debian-lts-announce] 20201106 [SECURITY] [DLA 2435-1] guacamole-server security update",
              "refsource": "MLIST",
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              "refsource": "FEDORA",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TVV5K2X4EXSAVUUL7IJ3MUJ3ADWMVSBM/"
            },
            {
              "name": "FEDORA-2020-640645e518",
              "refsource": "FEDORA",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WNS7UHBOFV6JHWH5XOEZTE3BREGRSSQ3/"
            },
            {
              "name": "[announce] 20210125 Apache Software Foundation Security Report: 2020",
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                "Third Party Advisory"
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            }
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "HIGH",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 6.2,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:H/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 1.9,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 0.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2021-07-21T11:39Z",
      "publishedDate": "2020-07-02T13:15Z"
    }
  }
}


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  • 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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.



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