Zoho ManageEngine Desktop Central File Upload Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2021-11-03
• EPSS: 100% chance of exploitation in the next 30 days (higher than 100% of CVEs)
• Critical severity: CVSS 9.8

[ Description ]Official description

Zoho ManageEngine Desktop Central before 10.0.474 allows remote code execution because of deserialization of untrusted data in getChartImage in the FileStorage class. This is related to the CewolfServlet and MDMLogUploaderServlet servlets.

CISA: Zoho ManageEngine Desktop Central contains a file upload vulnerability that allows for unauthenticated remote code execution.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 3 May 2022): Apply updates per vendor instructions.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• packetstormsecurity.com/files/156730/ManageEngine-Desktop-Central-Java-Deserialization.…ExploitThird Party AdvisoryVDB Entry
• cwe.mitre.org/data/definitions/502.htmlThird Party Advisory
• srcincite.io/advisories/src-2020-0011ExploitThird Party Advisory
• srcincite.io/pocs/src-2020-0011.py.txtExploitThird Party Advisory
• www.manageengine.com/products/desktop-central/remote-code-execution-vulnerability.htmlVendor Advisory
• www.zdnet.com/article/zoho-zero-day-published-on-twitterThird Party Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource