CVE-2023-20135

A vulnerability in Cisco IOS XR Software image verification checks could allow an authenticated, local attacker to execute arbitrary code on the underlying operating system. This vulnerability is due to a time-of-check, time-of-use (TOCTOU) race condition when an install query regarding an ISO image is performed during an install operation that uses an ISO image. An attacker could exploit this vulnerability by modifying an ISO image and then carrying out install requests in parallel. A successful exploit could allow the attacker to execute arbitrary code on an affected device.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*

History

21 Nov 2024, 07:40

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 7.0
v2 : unknown
v3 : 5.7
References () https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-lnt-L9zOkBz5 - Vendor Advisory () https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-lnt-L9zOkBz5 - Vendor Advisory

26 Oct 2023, 13:45

Type Values Removed Values Added
CPE cpe:2.3:h:cisco:ios_xr:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*

19 Sep 2023, 14:35

Type Values Removed Values Added
CWE CWE-367
CPE cpe:2.3:h:cisco:ios_xr:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.0
First Time Cisco
Cisco ios Xr
References (MISC) https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-lnt-L9zOkBz5 - (MISC) https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-lnt-L9zOkBz5 - Vendor Advisory

13 Sep 2023, 17:27

Type Values Removed Values Added
New CVE

Information

Published : 2023-09-13 17:15

Updated : 2024-11-21 07:40


NVD link : CVE-2023-20135

Mitre link : CVE-2023-20135

CVE.ORG link : CVE-2023-20135


JSON object : View

Products Affected

cisco

  • ios_xr
CWE
CWE-347

Improper Verification of Cryptographic Signature

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition