CVE-2021-30640

CWE-116CWE-287 — Improper AuthenticationCWE-28911 documents9 sources
Severity
6.5MEDIUM
EPSS
0.1%
top 69.90%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
8
Apache TomcatOracle Communications Diameter Signaling RouterOracle Tekelec Platform Distribution+5 more
Timeline
PublishedJul 12
Latest updateMar 31

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.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:NExploitability: 2.2 | Impact: 4.2

Affected Packages10 packages

▶NVDapache/tomcat7.0.0 — 7.0.109+3
▶Mavenorg.apache.tomcat:tomcat10.0.0-M1 — 10.0.5+2
▶Debiantomcat9< 9.0.43-2~deb11u1+3
▶Ubuntutomcat9< 9.0.16-3ubuntu0.18.04.2+1

Also affects: Debian Linux 10.0, 11.0, 9.0

Patches

Patch: www.oracle.com ↗Patch: www.oracle.com ↗Patch: www.oracle.com ↗

🔴Vulnerability Details

5
OSV
tomcat9 vulnerabilities↗2022-03-31
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OSV
Authentication Bypass by Alternate Name in Apache Tomcat↗2021-08-13
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GHSA
Authentication Bypass by Alternate Name in Apache Tomcat↗2021-08-13
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OSV
CVE-2021-30640: 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 t↗2021-07-12
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CVEList
Auth weakness in JNDIRealm↗2021-07-12
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📋Vendor Advisories

5
Ubuntu
Tomcat vulnerabilities↗2022-03-31
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Oracle
Oracle Oracle Communications Risk Matrix: Console (Apache Tomcat) — CVE-2021-30640↗2021-10-15
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Red Hat
tomcat: JNDI realm authentication weakness↗2021-07-12
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Debian
CVE-2021-30640: tomcat9 - A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authent...↗2021
▶
Apache
Apache tomcat: CVE-2021-30640↗
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