CVE-2013-2067: apache tomcat Improper Authentication
Vulnerability summary
CVE-2013-2067 is a medium (CVSS 6.8) Improper Authentication vulnerability in apache tomcat. EPSS estimates a 10.41% chance of exploitation in the next 30 days, higher than 95.7% of scored vulnerabilities.
Not severe (CVSS 6.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7Timeline
- 01-06-2013PublishedVulnerability first disclosed.
- 09-10-2026Last modifiedVulnerability information updated.
Description
java/org/apache/catalina/authenticator/FormAuthenticator.java in the form authentication feature in Apache Tomcat 6.0.21 through 6.0.36 and 7.x before 7.0.33 does not properly handle the relationships between authentication requirements and sessions, which allows remote attackers to inject a request into a session by sending this request during completion of the login form, a variant of a session fixation attack.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
10.41%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
Increase +3.26 pp
From 7.15% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Redhat9 products
- tomcat6< 0:6.0.24-57.el6_4
- tomcat6-admin-webapps< 0:6.0.24-57.el6_4
- tomcat6-docs-webapp< 0:6.0.24-57.el6_4
- tomcat6-el-2.1-api< 0:6.0.24-57.el6_4
- tomcat6-javadoc< 0:6.0.24-57.el6_4
Apache1 product
- tomcatEOL6.0.21 | 6.0.24 | 6.0.26 | 6.0.27 | 6.0.28 | 6.0.29 | 6.0.30 | 6.0.31 | 6.0.32 | 6.0.33 | 6.0.35 | 6.0.36 | 7.0.0 | 7.0.0:beta | 7.0.1 | 7.0.2 | 7.0.2:beta | 7.0.3 | 7.0.4 | 7.0.4:beta | 7.0.5 | 7.0.6 | 7.0.7 | 7.0.8 | 7.0.9 | 7.0.10 | 7.0.11 | 7.0.12 | 7.0.13 | 7.0.14 | 7.0.15 | 7.0.16 | 7.0.17 | 7.0.18 | 7.0.19 | 7.0.20 | 7.0.21 | 7.0.22 | 7.0.23 | 7.0.25 | 7.0.28 | 7.0.30 | 7.0.32
Org.apache.tomcat1 product
- tomcat≥ 6.0.21, < 6.0.37 | ≥ 7.0.0, < 7.0.33
Ubuntu1 product
- tomcat6< 6.0.39-1
4 vendors · 12 products