CVE-2021-30640
MEDIUM severity · CVSS 6.5 · CWE-116
6.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactLow
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)10%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
Affected products we track (2)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://www.oracle.com/security-alerts/cpujan2022.html ↗
Additional information
- NVD record
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch
- https://lists.apache.org/thread.html/r59f9ef03929d32120f91f4ea7e6e79edd5688d75d0a9b65fd26d1fe8%40%3Cannounce.tomcat.apache.org%3EAdvisory
- https://lists.debian.org/debian-lts-announce/2021/08/msg00009.htmlAdvisory
- https://security.gentoo.org/glsa/202208-34Advisory
- https://security.netapp.com/advisory/ntap-20210827-0007/Advisory
- https://www.debian.org/security/2021/dsa-4952Advisory
- https://www.debian.org/security/2021/dsa-4986Advisory
- https://www.oracle.com//security-alerts/cpujul2021.htmlAdvisory