Deserialization of Untrusted Data Affecting logback package, versions <1:1.2.8-1
Threat Intelligence
EPSS
1.56% (88th
percentile)
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-LOGBACK-2321376
- published 17 Dec 2021
- disclosed 16 Dec 2021
Introduced: 16 Dec 2021
CVE-2021-42550 Open this link in a new tabHow to fix?
Upgrade Debian:unstable logback to version 1:1.2.8-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream logback package and not the logback package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
In logback version 1.2.7 and prior versions, an attacker with the required privileges to edit configurations files could craft a malicious configuration allowing to execute arbitrary code loaded from LDAP servers.
References
- https://security-tracker.debian.org/tracker/CVE-2021-42550
- http://logback.qos.ch/news.html
- https://github.com/cn-panda/logbackRceDemo
- https://jira.qos.ch/browse/LOGBACK-1591
- https://security.netapp.com/advisory/ntap-20211229-0001/
- http://seclists.org/fulldisclosure/2022/Jul/11
- http://packetstormsecurity.com/files/167794/Open-Xchange-App-Suite-7.10.x-Cross-Site-Scripting-Command-Injection.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-371761.pdf
CVSS Scores
version 3.1