CVE-2023-3805 — A vulnerability, which was classified as critical, has been found in Xiamen Four

A vulnerability, which was classified as critical, has been found in Xiamen Four Letter Video Surveillance Management System up to 20230712. This issue affects some unknown processing in the library UserInfoAction.class of the component Login. The manipulation leads to improper a

01What is this vulnerability?

A vulnerability, which was classified as critical, has been found in Xiamen Four Letter Video Surveillance Management System up to 20230712. This issue affects some unknown processing in the library UserInfoAction.class of the component Login. The manipulation leads to improper authorization. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The…

02Affected products

Vendor	Product	Versions
Xiamen Four Letter	Video Surveillance Management System	20230712

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-07-21T01:31:03.740Z
• Last modified: 2024-08-02T07:08:50.356Z

09References

• vuldb.com — https://vuldb.com/?id.235073
• vuldb.com — https://vuldb.com/?ctiid.235073
• github.com — https://github.com/GUIqizsq/cve/blob/main/login.md