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 passwords, related to improper error checking in the (1) MemoryRealm, (2) DataSourceRealm, and (3) JDBCRealm authentication realms, as demonstrated by a % (percent) value for the j_password parameter.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.3 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.944 (99.9th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.944 · newest: 0.944 · change: 0.000
Affected products
- Apache Tomcat — versions 4.1.0, 4.1.1, 4.1.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:9101 (signature, vdb-entry)
- tomcat.apache.org/security-4.html (Patch, Vendor Advisory)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:18915 (signature, vdb-entry)
- marc.info/ (vendor-advisory)
- secunia.com/advisories/35326 (Vendor Advisory, third-party-advisory)
- www.mandriva.com/security/advisories (vendor-advisory)
- www.redhat.com/archives/fedora-package-announce/2009-November/msg01246.html (vendor-advisory)
- www.debian.org/security/2011/dsa-2207 (vendor-advisory)
- www.securityfocus.com/bid/35196 (vdb-entry)
- secunia.com/advisories/35344 (Vendor Advisory, third-party-advisory)
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.