Vulnerability Details : CVE-2022-20755
Multiple vulnerabilities in the API and web-based management interfaces of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker with read/write privileges to the application to write files or execute arbitrary code on the underlying operating system of an affected device as the root user. For more information about these vulnerabilities, see the Details section of this advisory.
Vulnerability category: Directory traversalExecute code
Products affected by CVE-2022-20755
- cpe:2.3:a:cisco:telepresence_video_communication_server:*:*:*:*:expressway:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-20755
3.27%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 86 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-20755
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.0
|
HIGH | AV:N/AC:L/Au:S/C:C/I:C/A:C |
8.0
|
10.0
|
NIST | |
|
9.0
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L |
2.3
|
6.0
|
Cisco Systems, Inc. | |
|
7.2
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
NIST |
CWE ids for CVE-2022-20755
-
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory.Assigned by: ykramarz@cisco.com (Secondary)
References for CVE-2022-20755
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-filewrite-87Q5YRk
Cisco Expressway Series and Cisco TelePresence Video Communication Server VulnerabilitiesVendor Advisory
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