CVE-2021-1461
Cisco SD-WAN Software Signature Verification Bypass Vulnerability
At a glance
- Source
- NVD
- EPSS
- EPSS 0.41 % · percentile 35 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Deferred
Description
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.
Weaknesses (CWE)
- CWE-347 — Improper Verification of Cryptographic Signature
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.9 | 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 | cisco |
| CVSS 3.1 | MEDIUM 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N | NVD · psirt@cisco.com (Secondary) |
European references
- ENISA EUVD · EUVD-2021-6928
- GCVE · GCVE-0-2021-1461
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Catalyst SD-WAN Manager | affected 19.2.1 ; affected 18.4.4 ; affected 19.3.0 ; affected 19.2.2 ; affected 19.2.099 ; affected 18.3.6 |
| Cisco · Cisco SD-WAN vEdge Router | affected 18.4.303 ; affected 18.3.7 ; affected 19.3.0 ; affected 18.2.0 ; affected 19.2.099 ; affected 17.2.10 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |