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": {
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"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"
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{
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"version_value": "4.10.01075"
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{
"version_affected": "=",
"version_value": "4.10.02086"
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{
"version_affected": "=",
"version_value": "4.10.03104"
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{
"version_affected": "=",
"version_value": "4.10.04065"
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{
"version_affected": "=",
"version_value": "4.10.04071"
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{
"version_affected": "=",
"version_value": "4.10.05085"
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{
"version_affected": "=",
"version_value": "4.10.05095"
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{
"version_affected": "=",
"version_value": "4.10.05111"
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{
"version_affected": "=",
"version_value": "4.10.06079"
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{
"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"
}
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"data_format": "MITRE",
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"data_version": "4.0",
"description": {
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{
"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": {
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{
"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:*:*",
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{
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"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": {
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
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"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": [
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"value": "CWE-276"
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"source": "nvd@nist.gov",
"type": "Primary"
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],
"source": "ykramarz@cisco.com",
"type": "Secondary"
}
]
}
}
}
}
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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.
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- 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.