openEuler update for tomcat



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-30640
CWE-ID CWE-287
Exploitation vector Network
Public exploit N/A
Vulnerable software
 openEuler
Operating systems & Components / Operating system

tomcat-jsvc
Operating systems & Components / Operating system package or component

tomcat-help
Operating systems & Components / Operating system package or component

tomcat
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Authentication

EUVDB-ID: #VU55417

Risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-30640

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in the JNDI Realm when processing authentication requests. A remote attacker can authenticate using variations of a valid user name and bypass some of the protection provided by the LockOut Realm.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP2

tomcat-jsvc: before 9.0.10-20

tomcat-help: before 9.0.10-20

tomcat: before 9.0.10-20

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1299


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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