CVE-2021-4104

high

Description

JMSAppender in Log4j 1.2 is vulnerable to deserialization of untrusted data when the attacker has write access to the Log4j configuration. The attacker can provide TopicBindingName and TopicConnectionFactoryBindingName configurations causing JMSAppender to perform JNDI requests that result in remote code execution in a similar fashion to CVE-2021-44228. Note this issue only affects Log4j 1.2 when specifically configured to use JMSAppender, which is not the default. Apache Log4j 1.2 reached end of life in August 2015. Users should upgrade to Log4j 2 as it addresses numerous other issues from the previous versions.

References

https://access.redhat.com/security/cve/CVE-2021-4104

https://www.cve.org/CVERecord?id=CVE-2021-44228

https://github.com/apache/logging-log4j2/pull/608#issuecomment-990494126

https://www.kb.cert.org/vuls/id/930724

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0033

https://security.netapp.com/advisory/ntap-20211223-0007/

http://www.openwall.com/lists/oss-security/2022/01/18/3

https://www.oracle.com/security-alerts/cpujan2022.html

https://www.oracle.com/security-alerts/cpuapr2022.html

https://www.oracle.com/security-alerts/cpujul2022.html

https://security.gentoo.org/glsa/202209-02

Details

Source: MITRE

Published: 2021-12-14

Updated: 2022-09-07

Type: CWE-502

Risk Information

CVSS v2

Base Score: 6

Vector: AV:N/AC:M/Au:S/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 6.8

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.6

Severity: HIGH