← gociux.comall exploited CVEs

Exploited vulnerability · CISA KEV

Is CVE-2021-23874 exploited? Yes: in CISA KEV since 3 Nov 2021

Gociux · McAfee Total Protection (MTP) · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2021-23874, McAfee Total Protection (MTP) Improper Privilege Management Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 3 Nov 2021, 266 days after it was published. It affects McAfee Total Protection (MTP). If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 3 Nov 2021
ransomwareNot knownno confirmed use
EPSSbelow top 10%lower predicted activity right now (it is still confirmed exploited)
severity8.2CVSS 3.1 · high
US federal due17 Nov 2021BOD 22-01 deadline

What it is

McAfee Total Protection (MTP) contains an improper privilege management vulnerability that allows a local user to gain elevated privileges and execute code, bypassing MTP self-defense.

VendorMcAfee (1 exploited CVE in KEV)
ProductMcAfee Total Protection (MTP)
VulnerabilityMcAfee Total Protection (MTP) Improper Privilege Management Vulnerability
WeaknessCWE-284
Published10 Feb 2021
Added to KEV3 Nov 2021
Reported by (CNA)trellix

What to do

  1. Check whether you run it. Look for McAfee Total Protection (MTP) in your asset inventory, including appliances and cloud images. Stack check lists every exploited McAfee 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 10 Feb 2021.
  4. Get told next time. Email alerts when CISA adds a CVE for McAfee.

References

Questions

Is CVE-2021-23874 being exploited?

Yes. CISA added CVE-2021-23874 to the Known Exploited Vulnerabilities catalog on 3 Nov 2021, which means there is reliable evidence of exploitation in the wild.

Is CVE-2021-23874 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-2021-23874?

Apply updates per vendor instructions. Check McAfee's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected McAfee Total Protection (MTP) 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 November 2021 · act-now radar.

Running McAfee in a regulated environment?

We check exposure across your estate, patch or mitigate with your team, and set up detection for what attackers do after exploiting it.

Get in touch →