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Exploited vulnerability · CISA KEV

Is CVE-2016-0752 exploited? Yes: in CISA KEV since 25 Mar 2022

Gociux · Rails Ruby on Rails · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2016-0752, Ruby on Rails Directory Traversal Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 25 Mar 2022, 2229 days after it was published. It affects Rails Ruby on Rails. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 25 Mar 2022
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity7.5CVSS 3.1 · high
US federal due15 Apr 2022BOD 22-01 deadline

What it is

Directory traversal vulnerability in Action View in Ruby on Rails allows remote attackers to read arbitrary files.

VendorRails (3 exploited CVEs in KEV)
ProductRuby on Rails
VulnerabilityRuby on Rails Directory Traversal Vulnerability
WeaknessCWE-22
Published16 Feb 2016
Added to KEV25 Mar 2022
Reported by (CNA)redhat

What to do

  1. Check whether you run it. Look for Ruby on Rails in your asset inventory, including appliances and cloud images. Stack check lists every exploited Rails 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 16 Feb 2016.
  4. Get told next time. Email alerts when CISA adds a CVE for Rails.

Other exploited CVEs in Ruby on Rails

References

Questions

Is CVE-2016-0752 being exploited?

Yes. CISA added CVE-2016-0752 to the Known Exploited Vulnerabilities catalog on 25 Mar 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2016-0752 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-2016-0752?

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

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