CVE-2022-36537: ZK Framework AuUploader Unspecified Vulnerability
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.
| Vendor | ZK Framework |
|---|---|
| Product | AuUploader |
| Date added to KEV | 2023-02-27 |
| Due date (BOD 22-01) | 2023-03-20 |
| Known ransomware campaign use | Known |
| CWE | CWE-441 |
| Required action | Apply updates per vendor instructions. |
What to do
- Identify every instance of ZK Framework AuUploader in your environment (asset inventory, EDR, vulnerability scanner).
- Apply CISA's required action: Apply updates per vendor instructions.
- Federal civilian agencies must act by 2023-03-20 under BOD 22-01; other organizations can use the same date as a target.
- Because ransomware use is known, check for signs of compromise and confirm backups are offline and tested.
- Check the vendor advisory and NVD entry linked below for affected versions, then record the fix in your change log.
This CVE is flagged by CISA as known to be used in ransomware campaigns. Rehearse your response before you need it: Ransomware tabletop exercise kit (Runbook Foundry).
Sources
- NVD entry for CVE-2022-36537 (severity scores, if any, live there)
- CISA KEV catalog entry
- https://tracker.zkoss.org/browse/ZK-5150
- https://nvd.nist.gov/vuln/detail/CVE-2022-36537