Rlc-410w Firmware: Improper Verification of Cryptographic Signature
CVE-2022-21134 is a high-severity improper verification of cryptographic signature vulnerability in Rlc-410w Firmware from Reolink, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Rlc-410w Firmware versions: 3.0.0.136_20121102. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.91% chance of exploitation within 30 days, higher than 60% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Rlc-410w Firmware you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Reolink | Rlc-410w Firmware | 3.0.0.136_20121102 | Not stated |
Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.5 | High | NVD |
| CVSS 3.0 | 8.3 | High | CNA (cisco.com) |
| CVSS 2.0 | 5.0 | Medium | NVD |
Official description
A firmware update vulnerability exists in the "update" firmware checks functionality of reolink RLC-410W v3.0.0.136_20121102. A specially-crafted HTTP request can lead to firmware update. An attacker can send a sequence of requests to trigger this vulnerability.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
More Improper Verification of Cryptographic Signature vulnerabilities (CWE-347)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
Other vulnerabilities in Rlc-410w Firmware
- 7.5 High severity
- 8.2 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.2 High severity
- 7.2 High severity
Recent Improper Verification of Cryptographic Signature vulnerabilities
- 5.5 Medium severity
Microsoft Windows Spoofing Exploited
- 10.0 Critical severity
- 8.8 High severity
Spotted an error? Tell us.