CVE-2021-30640
MEDIUM6.5EPSS 0.12%Authentication Bypass by Alternate Name in Apache Tomcat
Published: 8/13/2021Modified: 2/19/2024
Description
A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue affects Apache Tomcat 10.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65.
Affected packages (5)
- Bitnami/tomcat>= 7.0.0, < 7.0.109, >= 8.5.0, < 8.5.66, >= 9.0.0, < 9.0.46, >= 10.0.0, < 10.0.6
- Debian/tomcat8from 0, < 8.5.54-0+deb9u7
- Debian/tomcat9from 0, < 9.0.43-2~deb11u1
- Debian/tomcat9from 0, < 9.0.31-1~deb10u5
- Maven/org.apache.tomcat:tomcat>= 10.0.0-M1, < 10.0.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N |
References (12)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-30640
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-30640
- WEBhttps://lists.apache.org/thread.html/r59f9ef03929d32120f91f4ea7e6e79edd5688d75d0a9b65fd26d1fe8%40%3Cannounce.tomcat.apache.org%3E
- WEBhttps://lists.debian.org/debian-lts-announce/2021/08/msg00009.html
- WEBhttps://security.gentoo.org/glsa/202208-34
- WEBhttps://security.netapp.com/advisory/ntap-20210827-0007
- WEBhttps://security.netapp.com/advisory/ntap-20210827-0007/
- WEBhttps://www.debian.org/security/2021/dsa-4952
- WEBhttps://www.debian.org/security/2021/dsa-4986
- WEBhttps://www.oracle.com/security-alerts/cpujan2022.html
- WEBhttps://www.oracle.com//security-alerts/cpujul2021.html
- WEBhttps://www.oracle.com/security-alerts/cpuoct2021.html