CVE-2023-47678 — An improper access control vulnerability exists in RT-AC87U all versions

An improper access control vulnerability exists in RT-AC87U all versions. An attacker may read or write files that are not intended to be accessed by connecting to a target device via tftp.

01What is this vulnerability?

An improper access control vulnerability exists in RT-AC87U all versions. An attacker may read or write files that are not intended to be accessed by connecting to a target device via tftp.

02Affected products

Vendor	Product	Versions
ASUSTeK COMPUTER INC.	RT	AC87U — all versions

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: 2023-11-15T01:31:11.437Z
• Last modified: 2024-08-27T18:25:42.946Z

09References

• www.asus.com — https://www.asus.com/support/
• www.asus.com — https://www.asus.com/event/network/EOL-product/
• jvn.jp — https://jvn.jp/en/vu/JVNVU96079387/