Zoho Desktop Central Authentication Bypass Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2021-12-10
• 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 is vulnerable to authentication bypass, leading to remote code execution on the server, as exploited in the wild in December 2021. For Enterprise builds 10.1.2127.17 and earlier, upgrade to 10.1.2127.18. For Enterprise builds 10.1.2128.0 through 10.1.2137.2, upgrade to 10.1.2137.3. For MSP builds 10.1.2127.17 and earlier, upgrade to 10.1.2127.18. For MSP builds 10.1.2128.0 through 10.1.2137.2, upgrade to 10.1.2137.3.

CISA: Zoho Desktop Central contains an authentication bypass vulnerability that could allow an attacker to execute arbitrary code in the Desktop Central MSP server.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 24 Dec 2021): Apply updates per vendor instructions.

• Patch on manageengine.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD

[ References ]References

• pitstop.manageengine.com/portal/en/community/topic/an-authentication-bypass-vulnerabili…Issue TrackingVendor Advisory
• www.cisa.gov/uscert/ncas/current-activity/2021/12/10/cisa-adds-thirteen-known-exploited…Broken LinkThird Party AdvisoryUS Government Resource
• www.manageengine.com/products/desktop-central/cve-2021-44515-authentication-bypass-filt…ExploitPatchVendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource