Exploited vulnerability · CISA KEV

Is CVE-2022-2294 exploited? Yes: in CISA KEV since 25 Aug 2022

Gociux · WebRTC · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2022-2294, WebRTC Heap Buffer Overflow Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 25 Aug 2022, 28 days after it was published. It is known to be used in ransomware campaigns. It affects WebRTC. If you run it, CISA's required action is: Apply updates per vendor instructions.

What it is

WebRTC, an open-source project providing web browsers with real-time communication, contains a heap buffer overflow vulnerability that allows an attacker to perform shellcode execution. This vulnerability impacts web browsers using WebRTC including but not limited to Google Chrome.

What to do

1. Check whether you run it. Look for WebRTC in your asset inventory, including appliances and cloud images. Stack check lists every exploited WebRTC CVE at once.
2. Apply the fix. Apply updates per vendor instructions.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 28 Jul 2022.
4. Get told next time. Email alerts when CISA adds a CVE for WebRTC.

References

• groups.google.com/g/discuss-webrtc/c/5KBtZx2gvcQ
• nvd.nist.gov/vuln/detail/CVE-2022-2294

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in August 2022 · act-now radar.