CVE-2022-4768 — A vulnerability was found in Dropbox merou

A vulnerability was found in Dropbox merou. It has been classified as critical. Affected is the function add_public_key of the file grouper/public_key.py of the component SSH Public Key Handler. The manipulation of the argument public_key_str leads to injection. It is possible to

01What is this vulnerability?

A vulnerability was found in Dropbox merou. It has been classified as critical. Affected is the function add_public_key of the file grouper/public_key.py of the component SSH Public Key Handler. The manipulation of the argument public_key_str leads to injection. It is possible to launch the attack remotely. The name of the patch is d93087973afa26bc0a2d0a5eb5c0fde748bdd107. It is recommended to…

02Affected products

Vendor	Product	Versions
Dropbox	merou	n/a

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

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

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: 2022-12-27T22:33:35.180Z
• Last modified: 2024-08-03T01:48:40.389Z

09References

• vuldb.com — https://vuldb.com/?id.216906
• vuldb.com — https://vuldb.com/?ctiid.216906
• github.com — https://github.com/dropbox/merou/pull/673
• github.com — https://github.com/dropbox/merou/commit/d93087973afa26bc0a2d0a5eb5c0fde748bdd107