Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-fp5r-v3w9-4333
Advisory ID github_osv/GHSA-fp5r-v3w9-4333
Aliases CVE-2021-4104
Summary 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.
Status Published
Exploitability 2.0
Weighted Severity 6.8
Risk 10.0
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-502 Deserialization of Untrusted Data
System Score Found at
cvssv3.1 7.5 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/12/GHSA-fp5r-v3w9-4333/GHSA-fp5r-v3w9-4333.json
generic_textual HIGH
Reference id Reference type URL
https://github.com/apache/logging-log4j2
https://github.com/apache/logging-log4j2/pull/608#issuecomment-990494126
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0033
https://security.gentoo.org/glsa/202209-02
https://security.netapp.com/advisory/ntap-20211223-0007
http://www.openwall.com/lists/oss-security/2022/01/18/3
202310-16 Other https://security.gentoo.org/glsa/202310-16
930724 Advisory https://www.kb.cert.org/vuls/id/930724
cpuapr2022.html Other https://www.oracle.com/security-alerts/cpuapr2022.html
cpujan2022.html Other https://www.oracle.com/security-alerts/cpujan2022.html
cpujul2022.html Other https://www.oracle.com/security-alerts/cpujul2022.html
CVE-2021-4104 https://access.redhat.com/security/cve/CVE-2021-4104
CVE-2021-4104 https://nvd.nist.gov/vuln/detail/CVE-2021-4104
CVERecord?id=CVE-2021-44228 Other https://www.cve.org/CVERecord?id=CVE-2021-44228
GLSA-202312-02 https://security.gentoo.org/glsa/202312-02
GLSA-202312-04 https://security.gentoo.org/glsa/202312-04
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/12/GHSA-fp5r-v3w9-4333/GHSA-fp5r-v3w9-4333.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2023-12-20T16:29:18Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2021/4xxx/CVE-2021-4104.json

Source Advisory: vulnrichment/CVE-2021-4104

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]