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Exploited vulnerability · CISA KEV

Is CVE-2021-44077 exploited? Yes: in CISA KEV since 1 Dec 2021

Gociux · Zoho ManageEngine ServiceDesk Plus (SDP) / SupportCenter Plus · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2021-44077, Zoho ManageEngine ServiceDesk Plus Remote Code Execution Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 1 Dec 2021, 2 days after it was published. It affects Zoho ManageEngine ServiceDesk Plus (SDP) / SupportCenter Plus. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 1 Dec 2021
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.1 · critical
US federal due15 Dec 2021BOD 22-01 deadline

What it is

Zoho ManageEngine ServiceDesk Plus before 11306, ServiceDesk Plus MSP before 10530, and SupportCenter Plus before 11014 are vulnerable to unauthenticated remote code execution

VendorZoho (9 exploited CVEs in KEV)
ProductManageEngine ServiceDesk Plus (SDP) / SupportCenter Plus
VulnerabilityZoho ManageEngine ServiceDesk Plus Remote Code Execution Vulnerability
WeaknessCWE-306
Published29 Nov 2021
Added to KEV1 Dec 2021
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for ManageEngine ServiceDesk Plus (SDP) / SupportCenter Plus in your asset inventory, including appliances and cloud images. Stack check lists every exploited Zoho 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 29 Nov 2021.
  4. Get told next time. Email alerts when CISA adds a CVE for Zoho.

References

Questions

Is CVE-2021-44077 being exploited?

Yes. CISA added CVE-2021-44077 to the Known Exploited Vulnerabilities catalog on 1 Dec 2021, which means there is reliable evidence of exploitation in the wild.

Is CVE-2021-44077 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2021-44077?

Apply updates per vendor instructions. Check Zoho's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected ManageEngine ServiceDesk Plus (SDP) / SupportCenter Plus and watch it for signs of compromise.

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 December 2021 · Zoho scorecard · act-now radar.

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