Home/CVE/In logback version 1.2.7 and prior versions, an attacker with the required privileges to edit configurations files could
CVE

CVE-2021-42550

In logback version 1.2.7 and prior versions, an attacker with the required privileges to edit configurations files could

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.

MEDIUM · CVSS 6.6 EPSS 0.02729
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-502Deserialization of Untrusted Data
CWE-502Deserialization of Untrusted Data
▤

Affected Products & Versions

7
qos logback<= 1.2.7
qos logbackall versions
redhat satelliteall versions
netapp cloud managerall versions
netapp service level managerall versions
netapp snap creator frameworkall versions
siemens sinec nms< 1.0.3
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven ch.qos.logback:logback-core MODERATE fixed in 1.2.9
⚠

Public Exploits & PoCs

3
pocpacketstormsecurity.com · Open-Xchange-App-Suite-7.10.x-Cross-Site-Scripting-Comman...packetstormsecurity.com
pocgithub.com · logbackRceDemogithub.com
pocjira.qos.ch · LOGBACK-1591jira.qos.ch
▣

Scoring & Timeline

6.6
MEDIUM · CVSS v3.1 · vulnerability@ncsc.ch
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Dec 2021 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

10
usnUSN-7616-1
suse-csafopenSUSE-SU-2024:12026-1
suse-csafopenSUSE-SU-2024:12224-1
suse-csafSUSE-SU-2023:2097-1
siemens-csafSSA-371761
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://logback.qos.ch/news.htmlVendor Advisory
http://seclists.org/fulldisclosure/2022/Jul/11Mailing ListThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-371761.pdfThird Party Advisory
https://security.netapp.com/advisory/ntap-20211229-0001/Third Party Advisory
Intelligence Graph · click any node to traverse
CVETechnique ActorTool Family
drag to reposition · click any node to traverse · button top-right enlarges
External lookups - second-class, for what we don’t hold ourselves
NVDCVE.orgCISAVulnersExploit-DBGitHub PoCVulnCheck KEVGreyNoise
Vulnerabilities
CISA KEV catalog
CWE weaknesses
CAPEC attack patterns
Package vulnerabilities
Threat intelligence
Threat actors
Tools & malware
ATT&CK techniques
IOCs
Detection & defense
Sigma rules
YARA rules
Atomic Red Team tests
D3FEND countermeasures
Compliance
NIST 800-53
ISO 27001:2022
SOC 2 TSC
PCI-DSS v4.0
CIS Controls v8.1
About
All capabilities
Live statistics
Data sources
Privacy policy
Terms of service
threatengine.sh  ·  Open-source threat intelligence platform  ·  100+ authoritative sources  ·  Every fact traces to its origin