Exploited vulnerability · CISA KEV

Is CVE-2022-36537 exploited? Yes: in CISA KEV since 27 Feb 2023

Gociux · ZK Framework AuUploader · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2022-36537, ZK Framework AuUploader Unspecified Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 27 Feb 2023, 185 days after it was published. It is known to be used in ransomware campaigns. It affects ZK Framework AuUploader. If you run it, CISA's required action is: Apply updates per vendor instructions.

What it is

ZK Framework AuUploader servlets contain an unspecified vulnerability that could allow an attacker to retrieve the content of a file located in the web context. The ZK Framework is an open-source Java framework. This vulnerability can impact multiple products, including but not limited to ConnectWise R1Soft Server Backup Manager.

What to do

1. Check whether you run it. Look for AuUploader in your asset inventory, including appliances and cloud images. Stack check lists every exploited ZK Framework 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 26 Aug 2022.
4. Get told next time. Email alerts when CISA adds a CVE for ZK Framework.

References

• tracker.zkoss.org/browse/ZK-5150
• nvd.nist.gov/vuln/detail/CVE-2022-36537

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 February 2023 · act-now radar.