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Exploited vulnerability · CISA KEV

Is CVE-2011-1823 exploited? Yes: in CISA KEV since 8 Sep 2022

Gociux · Android OS · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2011-1823, Android OS Privilege Escalation Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 8 Sep 2022, 4109 days after it was published. It affects Android OS. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 8 Sep 2022
ransomwareNot knownno confirmed use
EPSStop 5%very likely to be exploited
severity7.8CVSS 3.1 · high
US federal due29 Sep 2022BOD 22-01 deadline

What it is

The vold volume manager daemon in Android kernel trusts messages from a PF_NETLINK socket, which allows an attacker to execute code and gain root privileges. This vulnerability is associated with GingerBreak and Exploit.AndroidOS.Lotoor.

VendorAndroid (17 exploited CVEs in KEV)
ProductAndroid OS
VulnerabilityAndroid OS Privilege Escalation Vulnerability
WeaknessCWE-189
Published9 Jun 2011
Added to KEV8 Sep 2022
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for Android OS in your asset inventory, including appliances and cloud images. Stack check lists every exploited Android 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 9 Jun 2011.
  4. Get told next time. Email alerts when CISA adds a CVE for Android.

References

Questions

Is CVE-2011-1823 being exploited?

Yes. CISA added CVE-2011-1823 to the Known Exploited Vulnerabilities catalog on 8 Sep 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2011-1823 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-2011-1823?

Apply updates per vendor instructions. Check Android's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Android OS 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 September 2022 · Android scorecard · act-now radar.

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