CVE-2021-44077
Zoho — Zoho ManageEngine ServiceDesk Plus Remote Code Execution Vulnerability
Zoho · CWE-306 · in CISA KEV since 2021-12-01
EVRS 85 of 100 Immediate
Out-of-Band / Urgent Remediation
Rank 387 of 2,960 tracked
Why it scores 85
Evidence available: 6 of 7 signalsListed in the CISA KEV catalog, and an EPSS probability of 0.933.
- CISA KEVApplied
- RansomwareDid not apply
- Vendor exploitationDid not apply
- EPSSApplied
- Microsoft Exploitability IndexNot applicable
- Pre-patch disclosureNo data
- KEV recencyDid not apply
- CVSSApplied
The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data
Fix
Patch or fixed version identifiedCISA required action
Fixed in
manageengine servicedesk plus: update to 11.1 or later | manageengine servicedesk plus msp: update to 10.5 or later | manageengine supportcenter plus: update to 11.0 or later
Affected versions
- manageengine servicedesk plus
< 11.111.111.211.3 - manageengine servicedesk plus msp
< 10.510.5 - manageengine supportcenter plus
< 11.011.0
Remediation
Apply updates per vendor instructions.
Fixed versions from NVD.
Evidence
Each value with its source| Measure | Value | Source |
|---|---|---|
| CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. | 9.8 | NVD |
| FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. | 0.933 (99.84th pctl) | FIRST EPSS |
| Actively exploitedWhether a source of record has confirmed attacks using it in the wild. | Confirmed | CISA KEV |
| Ransomware campaign useWhether CISA has seen ransomware operators use it. | Unknown or none | CISA KEV |
| CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. | 2021-12-15 · KEV since 2021 · listed over a year | CISA KEV |
| Public exploit moduleA module existing is not the same as active exploitation. | Public module exists | Metasploit |
| EUVD cross-referenceENISA's record: CVSS 9.8 (v3.1), assigned by mitre. | Listed | ENISA EUVD |
Description
NVDZoho ManageEngine ServiceDesk Plus before 11306, ServiceDesk Plus MSP before 10530, and SupportCenter Plus before 11014 are vulnerable to unauthenticated remote code execution. This is related to /RestAPI URLs in a servlet, and ImportTechnicians in the Struts configuration.
What CISA says to do
Public module
Metasploit lists a public excellent-rank module for this CVE: ManageEngine ServiceDesk Plus CVE-2021-44077 (windows/http/manageengine_servicedesk_plus_cve_2021_44077). A module existing is not the same as active exploitation; see metasploit.com.