Vulnerability Details : CVE-2020-3143
A vulnerability in the video endpoint API (xAPI) of Cisco TelePresence Collaboration Endpoint (CE) Software, Cisco TelePresence Codec (TC) Software, and Cisco RoomOS Software could allow an authenticated, remote attacker to conduct directory traversal attacks on an affected device. The vulnerability is due to insufficient validation of user-supplied input to the xAPI of the affected software. An attacker could exploit this vulnerability by sending a crafted request to the xAPI. A successful exploit could allow the attacker to read and write arbitrary files in the system. To exploit this vulnerability, an attacker would need either an In-Room Control or administrator account.
Vulnerability category: Directory traversal
Exploit prediction scoring system (EPSS) score for CVE-2020-3143
Probability of exploitation activity in the next 30 days: 0.38%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 72 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2020-3143
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
9.0
|
HIGH | AV:N/AC:L/Au:S/C:C/I:C/A:C |
8.0
|
10.0
|
NIST |
|
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
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-2020-3143
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)
References for CVE-2020-3143
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-telepresence-path-tr-wdrnYEZZ
Cisco TelePresence Collaboration Endpoint, TelePresence Codec, and RoomOS Software Path Traversal VulnerabilityVendor Advisory
Products affected by CVE-2020-3143
- cpe:2.3:o:cisco:telepresence_codec_c40_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:telepresence_codec_c60_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:telepresence_codec_c90_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ex60_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ex90_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:sx10_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:sx20_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:sx80_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:telepresence_mx200_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:telepresence_mx300_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:telepresence_mx700_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:telepresence_mx800_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:webex_board_55_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:webex_board_55s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:webex_board_70_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:webex_board_70s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:webex_board_85s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:webex_dx70_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:webex_dx80_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:webex_room_55_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:webex_room_70_firmware:-:*:*:*:*:*:*:*