4.3

CVE-2009-0580: apache tomcat

Modified
AliasesGHSA-w227-xcfx-3pj8
Published 05-06-2009Last modified 07-08-2024

Vulnerability summary

CVE-2009-0580 is a medium (CVSS 4.3) vulnerability in apache tomcat. EPSS estimates a 94.44% chance of exploitation in the next 30 days, higher than 99.8% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Prioritiseweaponized exploit

Weaponized exploit (exploit-database, 03-06-2009)

Source freshness unavailable

How is this decided?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
94.44%
0%100%
Critical · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2exploit-database, metasploit

Advisory lineage

Upstream 0 · Downstream 12
DSA-2207-1RHSA-2009:1143RHSA-2009:1144RHSA-2009:1145RHSA-2009:1146RHSA-2009:1164

Timeline

  1. 05-06-2009
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

94.44%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

No change 0.00 pp

From 94.44% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • exploit-databaseremotemultipleVerified

    Apache Tomcat 6.0.18 - Form Authentication Existing/Non-Existing 'Username' Enumeration

    Maturity: weaponized

  • MetasploitMetasploitremoteUnverified

    Apache Tomcat User Enumeration

    auxiliary/scanner/http/tomcat_enum

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Apache1 product
  • tomcatEOL4.1.0 | 4.1.1 | 4.1.2 | 4.1.3 | 4.1.3:beta | 4.1.4 | 4.1.5 | 4.1.6 | 4.1.7 | 4.1.8 | 4.1.9 | 4.1.9:beta | 4.1.10 | 4.1.11 | 4.1.12 | 4.1.13 | 4.1.14 | 4.1.15 | 4.1.16 | 4.1.17 | 4.1.18 | 4.1.19 | 4.1.20 | 4.1.21 | 4.1.22 | 4.1.23 | 4.1.24 | 4.1.25 | 4.1.26 | 4.1.27 | 4.1.28 | 4.1.29 | 4.1.30 | 4.1.31 | 4.1.32 | 4.1.33 | 4.1.34 | 4.1.35 | 4.1.36 | 4.1.37 | 4.1.38 | 4.1.39 | 5.5.0 | 5.5.1 | 5.5.2 | 5.5.3 | 5.5.4 | 5.5.5 | 5.5.6 | 5.5.7 | 5.5.8 | 5.5.9 | 5.5.10 | 5.5.11 | 5.5.12 | 5.5.13 | 5.5.14 | 5.5.15 | 5.5.16 | 5.5.17 | 5.5.18 | 5.5.19 | 5.5.20 | 5.5.21 | 5.5.22 | 5.5.23 | 5.5.24 | 5.5.25 | 5.5.26 | 5.5.27 | 6.0.0 | 6.0.1 | 6.0.2 | 6.0.3 | 6.0.4 | 6.0.5 | 6.0.6 | 6.0.7 | 6.0.8 | 6.0.9 | 6.0.10 | 6.0.11 | 6.0.12 | 6.0.13 | 6.0.14 | 6.0.15 | 6.0.16
Org.apache.tomcat1 product
  • tomcat≥ 4.1.0, < 4.1.40 | ≥ 5.0.0, < 5.5.28 | ≥ 6.0.0, < 6.0.19

2 vendors · 2 products

References

71 links
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