Information disclosure in Apache Tomcat

CVE-2009-0580

Apache Tomcat 4.1.0 through 4.1.39, 5.5.0 through 5.5.27, and 6.0.0 through 6.0.18, when FORM authentication is used, allows remote attackers to enumerate valid usernames via requests to /j_security_check with malformed URL encoding of pas…

Vulnerability class: Information Disclosure

EPSS: 0.944 (99.8th percentile) — read the EPSS interpretation.

Affected products

  • Apache Tomcat — versions 4.1.0, 4.1.1, 4.1.2
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2009-0580?
CVE-2009-0580 is a vulnerability in Apache Tomcat, classified under Information Disclosure. Published 2009-06-05.
Is CVE-2009-0580 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.