Vulnerability in Cisco IOS XR Software iPXE Boot Function
CVE-2023-20236

6.7MEDIUM

Key Information:

Vendor
Cisco
Status
Cisco iOS Xr Software
Vendor
CVE Published:
13 September 2023

Badges

👾 Exploit Exists

Summary

A security flaw in the iPXE boot function of Cisco IOS XR Software permits authenticated local attackers to load an unverified software image. This weakness arises from inadequate verification of the boot image, allowing exploitation through manipulation of boot parameters during the iPXE process. If successfully exploited, this vulnerability could enable the attacker to run unauthorized software on the device, potentially compromising its integrity and security.

Affected Version(s)

Cisco IOS XR Software 5.2.0

Cisco IOS XR Software 5.2.1

Cisco IOS XR Software 5.2.2

References

https://sec.cloudapps.cisco.com/security/center/content/C...

CVSS V3.1

Score:
6.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.