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Title
Cisco Expressway Series命令注入漏洞
Description
Cisco Expressway Series是美国思科（Cisco）公司的一款用于防火墙外访问设备的软件。该软件为防火墙外的用户提供了简单、高度安全的访问功能，帮助远程办公人员在他们选择的设备上更有效地工作。
Cisco Expressway Series存在命令注入漏洞，该漏洞源于对用户提供的输入验证不足。经过身份验证的本地攻击者可利用该漏洞对底层操作系统执行命令注入攻击并将权限提升至root。
Severity
中
Patch Name
Cisco Expressway Series命令注入漏洞的补丁
Patch Description
Cisco Expressway Series是美国思科（Cisco）公司的一款用于防火墙外访问设备的软件。该软件为防火墙外的用户提供了简单、高度安全的访问功能，帮助远程办公人员在他们选择的设备上更有效地工作。
Cisco Expressway Series存在命令注入漏洞，该漏洞源于对用户提供的输入验证不足。经过身份验证的本地攻击者可利用该漏洞对底层操作系统执行命令注入攻击并将权限提升至root。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
厂商已发布了漏洞修复程序，请及时关注更新： https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expw-escalation-3bkz77bD
Reference
https://nvd.nist.gov/vuln/detail/CVE-2024-20492
Impacted products
| Name | Cisco Expressway Series <15.2 (Oct 2024) |
|---|
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CVE-2024-20492 (GCVE-0-2024-20492)
Vulnerability from cvelistv5 – Published: 2024-10-02 16:55 – Updated: 2024-10-02 19:24
VLAI
EPSS
Title
Cisco Expressway Series Privilege Escalation Vulnerability
Summary
A vulnerability in the restricted shell of Cisco Expressway Series could allow an authenticated, local attacker to perform command injection attacks on the underlying operating system and elevate privileges to root. To exploit this vulnerability, the attacker must have Administrator-level credentials with read-write privileges on an affected device.
This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a series of crafted CLI commands. A successful exploit could allow the attacker to escape the restricted shell and gain root privileges on the underlying operating system of the affected device.
Note: Cisco Expressway Series refers to Cisco Expressway Control (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices.
Severity
6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco TelePresence Video Communication Server (VCS) Expressway |
Affected:
X8.11.2
Affected: X8.6 Affected: X8.11.3 Affected: X8.2.2 Affected: X8.8.3 Affected: X8.11.0 Affected: X12.5.2 Affected: X8.1.1 Affected: X8.9 Affected: X12.5.1 Affected: X12.5.6 Affected: X8.7.3 Affected: X12.6.0 Affected: X8.11.1 Affected: X8.5 Affected: X8.9.1 Affected: X8.10.2 Affected: X8.8.2 Affected: X8.5.3 Affected: X8.1 Affected: X8.9.2 Affected: X8.11.4 Affected: X12.5.4 Affected: X8.8.1 Affected: X8.2.1 Affected: X8.5.1 Affected: X8.6.1 Affected: X8.1.2 Affected: X8.8 Affected: X8.10.0 Affected: X12.5.3 Affected: X8.10.1 Affected: X12.5.7 Affected: X8.10.3 Affected: X8.7.1 Affected: X8.2 Affected: X12.5.8 Affected: X8.7 Affected: X8.5.2 Affected: X12.5.9 Affected: X12.5.0 Affected: X8.10.4 Affected: X8.7.2 Affected: X12.5.5 Affected: X12.6.1 Affected: X12.6.2 Affected: X12.6.3 Affected: X12.6.4 Affected: X12.7.0 Affected: X12.7.1 Affected: X14.0.0 Affected: X14.0.1 Affected: X14.0.2 Affected: X14.0.3 Affected: X14.0.4 Affected: X14.0.5 Affected: X14.0.6 Affected: X14.0.7 Affected: X14.0.8 Affected: X14.2.0 Affected: X14.0.9 Affected: X14.2.1 Affected: X14.2.2 Affected: X14.0.11 Affected: X14.2.5 Affected: X14.0.10 Affected: X14.2.6 Affected: X14.2.7 Affected: X14.3.0 Affected: X14.3.1 Affected: X14.3.2 Affected: X14.3.3 Affected: X15.0.0 Affected: X14.3.4 Affected: X14.3.5 Affected: X15.0.1 Affected: X15.0.2 Affected: X15.0.3 Affected: X14.3.6 |
|
| cisco | telepresence_video_communication_server |
Affected:
X8.11.2
Affected: X8.6 Affected: X8.11.3 Affected: X8.2.2 Affected: X8.8.3 Affected: X8.11.0 Affected: X12.5.2 Affected: X8.1.1 Affected: X8.9 Affected: X12.5.1 Affected: X12.5.6 Affected: X8.7.3 Affected: X12.6.0 Affected: X8.11.1 Affected: X8.5 Affected: X8.9.1 Affected: X8.10.2 Affected: X8.8.2 Affected: X8.5.3 Affected: X8.1 Affected: X8.9.2 Affected: X8.11.4 Affected: X12.5.4 Affected: X8.8.1 Affected: X8.2.1 Affected: X8.5.1 Affected: X8.6.1 Affected: X8.1.2 Affected: X8.8 Affected: X8.10.0 Affected: X12.5.3 Affected: X8.10.1 Affected: X12.5.7 Affected: X8.10.3 Affected: X8.7.1 Affected: X8.2 Affected: X12.5.8 Affected: X8.7 Affected: X8.5.2 cpe:2.3:a:cisco:telepresence_video_communication_server:-:*:*:*:expressway:*:*:* |
{
"containers": {
"adp": [
{
"affected": [
{
"cpes": [
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{
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{
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{
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{
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{
"status": "affected",
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
"status": "affected",
"version": "X8.11.4"
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{
"status": "affected",
"version": "X12.5.4"
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{
"status": "affected",
"version": "X8.8.1"
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{
"status": "affected",
"version": "X8.2.1"
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{
"status": "affected",
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{
"status": "affected",
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{
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"version": "X8.1.2"
},
{
"status": "affected",
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},
{
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"version": "X8.10.0"
},
{
"status": "affected",
"version": "X12.5.3"
},
{
"status": "affected",
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},
{
"status": "affected",
"version": "X12.5.7"
},
{
"status": "affected",
"version": "X8.10.3"
},
{
"status": "affected",
"version": "X8.7.1"
},
{
"status": "affected",
"version": "X8.2"
},
{
"status": "affected",
"version": "X12.5.8"
},
{
"status": "affected",
"version": "X8.7"
},
{
"status": "affected",
"version": "X8.5.2"
}
]
}
],
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-20492",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-10-02T18:57:14.215790Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-10-02T19:24:15.214Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "Cisco TelePresence Video Communication Server (VCS) Expressway",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "X8.11.2"
},
{
"status": "affected",
"version": "X8.6"
},
{
"status": "affected",
"version": "X8.11.3"
},
{
"status": "affected",
"version": "X8.2.2"
},
{
"status": "affected",
"version": "X8.8.3"
},
{
"status": "affected",
"version": "X8.11.0"
},
{
"status": "affected",
"version": "X12.5.2"
},
{
"status": "affected",
"version": "X8.1.1"
},
{
"status": "affected",
"version": "X8.9"
},
{
"status": "affected",
"version": "X12.5.1"
},
{
"status": "affected",
"version": "X12.5.6"
},
{
"status": "affected",
"version": "X8.7.3"
},
{
"status": "affected",
"version": "X12.6.0"
},
{
"status": "affected",
"version": "X8.11.1"
},
{
"status": "affected",
"version": "X8.5"
},
{
"status": "affected",
"version": "X8.9.1"
},
{
"status": "affected",
"version": "X8.10.2"
},
{
"status": "affected",
"version": "X8.8.2"
},
{
"status": "affected",
"version": "X8.5.3"
},
{
"status": "affected",
"version": "X8.1"
},
{
"status": "affected",
"version": "X8.9.2"
},
{
"status": "affected",
"version": "X8.11.4"
},
{
"status": "affected",
"version": "X12.5.4"
},
{
"status": "affected",
"version": "X8.8.1"
},
{
"status": "affected",
"version": "X8.2.1"
},
{
"status": "affected",
"version": "X8.5.1"
},
{
"status": "affected",
"version": "X8.6.1"
},
{
"status": "affected",
"version": "X8.1.2"
},
{
"status": "affected",
"version": "X8.8"
},
{
"status": "affected",
"version": "X8.10.0"
},
{
"status": "affected",
"version": "X12.5.3"
},
{
"status": "affected",
"version": "X8.10.1"
},
{
"status": "affected",
"version": "X12.5.7"
},
{
"status": "affected",
"version": "X8.10.3"
},
{
"status": "affected",
"version": "X8.7.1"
},
{
"status": "affected",
"version": "X8.2"
},
{
"status": "affected",
"version": "X12.5.8"
},
{
"status": "affected",
"version": "X8.7"
},
{
"status": "affected",
"version": "X8.5.2"
},
{
"status": "affected",
"version": "X12.5.9"
},
{
"status": "affected",
"version": "X12.5.0"
},
{
"status": "affected",
"version": "X8.10.4"
},
{
"status": "affected",
"version": "X8.7.2"
},
{
"status": "affected",
"version": "X12.5.5"
},
{
"status": "affected",
"version": "X12.6.1"
},
{
"status": "affected",
"version": "X12.6.2"
},
{
"status": "affected",
"version": "X12.6.3"
},
{
"status": "affected",
"version": "X12.6.4"
},
{
"status": "affected",
"version": "X12.7.0"
},
{
"status": "affected",
"version": "X12.7.1"
},
{
"status": "affected",
"version": "X14.0.0"
},
{
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"version": "X14.0.1"
},
{
"status": "affected",
"version": "X14.0.2"
},
{
"status": "affected",
"version": "X14.0.3"
},
{
"status": "affected",
"version": "X14.0.4"
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{
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"version": "X14.0.5"
},
{
"status": "affected",
"version": "X14.0.6"
},
{
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"version": "X14.0.7"
},
{
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"version": "X14.0.8"
},
{
"status": "affected",
"version": "X14.2.0"
},
{
"status": "affected",
"version": "X14.0.9"
},
{
"status": "affected",
"version": "X14.2.1"
},
{
"status": "affected",
"version": "X14.2.2"
},
{
"status": "affected",
"version": "X14.0.11"
},
{
"status": "affected",
"version": "X14.2.5"
},
{
"status": "affected",
"version": "X14.0.10"
},
{
"status": "affected",
"version": "X14.2.6"
},
{
"status": "affected",
"version": "X14.2.7"
},
{
"status": "affected",
"version": "X14.3.0"
},
{
"status": "affected",
"version": "X14.3.1"
},
{
"status": "affected",
"version": "X14.3.2"
},
{
"status": "affected",
"version": "X14.3.3"
},
{
"status": "affected",
"version": "X15.0.0"
},
{
"status": "affected",
"version": "X14.3.4"
},
{
"status": "affected",
"version": "X14.3.5"
},
{
"status": "affected",
"version": "X15.0.1"
},
{
"status": "affected",
"version": "X15.0.2"
},
{
"status": "affected",
"version": "X15.0.3"
},
{
"status": "affected",
"version": "X14.3.6"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the restricted shell of Cisco Expressway Series could allow an authenticated, local attacker to perform command injection attacks on the underlying operating system and elevate privileges to root. To exploit this vulnerability, the attacker must have Administrator-level credentials with read-write privileges on an affected device.\r\n\r\nThis vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a series of crafted CLI commands. A successful exploit could allow the attacker to escape the restricted shell and gain root privileges on the underlying operating system of the affected device.\r\nNote: Cisco Expressway Series refers to Cisco Expressway Control (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices."
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 6,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-77",
"description": "Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-10-02T16:55:33.932Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-expw-escalation-3bkz77bD",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expw-escalation-3bkz77bD"
}
],
"source": {
"advisory": "cisco-sa-expw-escalation-3bkz77bD",
"defects": [
"CSCwk75586"
],
"discovery": "EXTERNAL"
},
"title": "Cisco Expressway Series Privilege Escalation Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2024-20492",
"datePublished": "2024-10-02T16:55:33.932Z",
"dateReserved": "2023-11-08T15:08:07.685Z",
"dateUpdated": "2024-10-02T19:24:15.214Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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