CVE-2021-1461CWE-347

Cisco SD-WAN Software Signature Verification Bypass Vulnerability

Medium · published November 18, 2024

CVSS v3.1
4.9
EPSS
0%
Percentile
34.0
In the wild
Unconfirmed
What it is

A vulnerability in the Image Signature Verification feature of Cisco SD-WAN Software could allow an authenticated, remote attacker with Administrator-level credentials to install a malicious software patch on an affected device.

The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.Cisco has released software updates that address the vulnerability described in this advisory. There are no workarounds that address this vulnerability.

The record
Technical detail
CVSS v3.1
4.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N/RL:X/RC:X/E:X
CVSS v4.0
Not supplied
EPSS
0.00409 · 34.0th percentile
Weakness
CWE-347 · Improper Verification of Cryptographic Signature
Published
2024-11-18T15:33Z
EPSS history
Timeline
  • 18 NOV 15:33Z
    Cisco SD-WAN Software Signature Verification Bypass Vulnerability
    cvelistv5