gsd-2023-20178
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
A vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges to those of SYSTEM. The client update process is executed after a successful VPN connection is established.
This vulnerability exists because improper permissions are assigned to a temporary directory that is created during the update process. An attacker could exploit this vulnerability by abusing a specific function of the Windows installer process. A successful exploit could allow the attacker to execute code with SYSTEM privileges.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2023-20178", "id": "GSD-2023-20178" }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2023-20178" ], "details": "A vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges to those of SYSTEM. The client update process is executed after a successful VPN connection is established.\r\n\r This vulnerability exists because improper permissions are assigned to a temporary directory that is created during the update process. An attacker could exploit this vulnerability by abusing a specific function of the Windows installer process. A successful exploit could allow the attacker to execute code with SYSTEM privileges.", "id": "GSD-2023-20178", "modified": "2023-12-13T01:20:29.250464Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "psirt@cisco.com", "ID": "CVE-2023-20178", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Cisco Secure Client", "version": { "version_data": [ { "version_affected": "=", "version_value": "4.9.00086" }, { "version_affected": "=", "version_value": "4.9.01095" }, { "version_affected": "=", "version_value": "4.9.02028" }, { "version_affected": "=", "version_value": "4.9.03047" }, { "version_affected": "=", "version_value": "4.9.03049" }, { "version_affected": "=", "version_value": "4.9.04043" }, { "version_affected": "=", "version_value": "4.9.04053" }, { "version_affected": "=", "version_value": "4.9.05042" }, { "version_affected": "=", "version_value": "4.9.06037" }, { "version_affected": "=", "version_value": "4.10.00093" }, { "version_affected": "=", "version_value": "4.10.01075" }, { "version_affected": "=", "version_value": "4.10.02086" }, { "version_affected": "=", "version_value": "4.10.03104" }, { "version_affected": "=", "version_value": "4.10.04065" }, { "version_affected": "=", "version_value": "4.10.04071" }, { "version_affected": "=", "version_value": "4.10.05085" }, { "version_affected": "=", "version_value": "4.10.05095" }, { "version_affected": "=", "version_value": "4.10.05111" }, { "version_affected": "=", "version_value": "4.10.06079" }, { "version_affected": "=", "version_value": "4.10.06090" }, { "version_affected": "=", "version_value": "5.0.00238" }, { "version_affected": "=", "version_value": "5.0.00529" }, { "version_affected": "=", "version_value": "5.0.00556" }, { "version_affected": "=", "version_value": "5.0.01242" } ] } } ] }, "vendor_name": "Cisco" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges to those of SYSTEM. The client update process is executed after a successful VPN connection is established.\r\n\r This vulnerability exists because improper permissions are assigned to a temporary directory that is created during the update process. An attacker could exploit this vulnerability by abusing a specific function of the Windows installer process. A successful exploit could allow the attacker to execute code with SYSTEM privileges." } ] }, "exploit": [ { "lang": "en", "value": "The Cisco PSIRT is aware that proof-of-concept exploit code is available for the vulnerability that is described in this advisory." } ], "impact": { "cvss": [ { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "cweId": "CWE-276", "lang": "eng", "value": "Incorrect Default Permissions" } ] } ] }, "references": { "reference_data": [ { "name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ac-csc-privesc-wx4U4Kw", "refsource": "MISC", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ac-csc-privesc-wx4U4Kw" } ] }, "source": { "advisory": "cisco-sa-ac-csc-privesc-wx4U4Kw", "defects": [ "CSCwe00252" ], "discovery": "EXTERNAL" } }, "nvd.nist.gov": { "cve": { "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:cisco:anyconnect_secure_mobility_client:*:*:*:*:*:windows:*:*", "matchCriteriaId": "9980A481-8A54-475A-B735-0C339FF30314", "versionEndExcluding": "4.10.07061", "vulnerable": true }, { "criteria": "cpe:2.3:a:cisco:secure_client:*:*:*:*:*:windows:*:*", "matchCriteriaId": "7A856448-9BF4-4693-A1EA-3B6C06DB4259", "versionEndExcluding": "5.0.02075", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "descriptions": [ { "lang": "en", "value": "A vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges to those of SYSTEM. The client update process is executed after a successful VPN connection is established.\r\n\r This vulnerability exists because improper permissions are assigned to a temporary directory that is created during the update process. An attacker could exploit this vulnerability by abusing a specific function of the Windows installer process. A successful exploit could allow the attacker to execute code with SYSTEM privileges." } ], "id": "CVE-2023-20178", "lastModified": "2024-01-25T17:15:32.647", "metrics": { "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary" }, { "cvssData": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "ykramarz@cisco.com", "type": "Secondary" } ] }, "published": "2023-06-28T15:15:09.880", "references": [ { "source": "ykramarz@cisco.com", "tags": [ "Vendor Advisory" ], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ac-csc-privesc-wx4U4Kw" } ], "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-276" } ], "source": "nvd@nist.gov", "type": "Primary" }, { "description": [ { "lang": "en", "value": "CWE-276" } ], "source": "ykramarz@cisco.com", "type": "Secondary" } ] } } } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.