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URL: https://nvd.nist.gov/vuln/detail/CVE-2021-42550

⇱ NVD - CVE-2021-42550

  1. Vulnerabilities

CVE-2021-42550 Detail

Modified After Enrichment

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://logback.qos.ch/news.html CVE, Switzerland Government Common Vulnerability Program Vendor Advisory 
http://packetstormsecurity.com/files/167794/Open-Xchange-App-Suite-7.10.x-Cross-Site-Scripting-Command-Injection.html CVE, Switzerland Government Common Vulnerability Program Exploit  Third Party Advisory  VDB Entry 
http://seclists.org/fulldisclosure/2022/Jul/11 CVE, Switzerland Government Common Vulnerability Program Mailing List  Third Party Advisory 
https://cert-portal.siemens.com/productcert/pdf/ssa-371761.pdf CVE, Switzerland Government Common Vulnerability Program Third Party Advisory 
https://github.com/cn-panda/logbackRceDemo CVE, Switzerland Government Common Vulnerability Program Exploit  Third Party Advisory 
https://jira.qos.ch/browse/LOGBACK-1591 CVE, Switzerland Government Common Vulnerability Program Exploit  Issue Tracking  Patch  Third Party Advisory 
https://security.netapp.com/advisory/ntap-20211229-0001/ CVE, Switzerland Government Common Vulnerability Program Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-502 Deserialization of Untrusted Data 👁 cwe source acceptance level
NIST   Switzerland Government Common Vulnerability Program  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
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Change History

11 change records found show changes

CVE Modified by Switzerland Government Common Vulnerability Program 6/17/2026 12:09:48 AM

Action Type Old Value New Value
Added Affected 
[{"vendor":"QOS.ch","product":"logback","versions":[{"version":"unspecified","lessThan":"1.2.9","versionType":"custom","status":"affected"},{"version":"unspecified","lessThan":"1.3.0-alpha11","versionType":"custom","status":"affected"}]}]

CVE Modified by CVE 11/21/2024 1:27:47 AM

Action Type Old Value New Value
Added Reference 
http://logback.qos.ch/news.html
Added Reference 
http://packetstormsecurity.com/files/167794/Open-Xchange-App-Suite-7.10.x-Cross-Site-Scripting-Command-Injection.html
Added Reference 
http://seclists.org/fulldisclosure/2022/Jul/11
Added Reference 
https://cert-portal.siemens.com/productcert/pdf/ssa-371761.pdf
Added Reference 
https://github.com/cn-panda/logbackRceDemo
Added Reference 
https://jira.qos.ch/browse/LOGBACK-1591
Added Reference 
https://security.netapp.com/advisory/ntap-20211229-0001/

CVE Modified by Switzerland Government Common Vulnerability Program 5/14/2024 5:30:38 AM

Action Type Old Value New Value

Modified Analysis by NIST 12/12/2022 4:13:07 PM

Action Type Old Value New Value
Added CPE Configuration 
OR
 *cpe:2.3:a:siemens:sinec_nms:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.3
Changed Reference Type 
https://cert-portal.siemens.com/productcert/pdf/ssa-371761.pdf No Types Assigned


 
https://cert-portal.siemens.com/productcert/pdf/ssa-371761.pdf Third Party Advisory

CVE Modified by Switzerland Government Common Vulnerability Program 11/08/2022 9:15:11 AM

Action Type Old Value New Value
Added Reference 
https://cert-portal.siemens.com/productcert/pdf/ssa-371761.pdf [No Types Assigned]

Modified Analysis by NIST 10/28/2022 10:00:06 AM

Action Type Old Value New Value
Changed Reference Type 
http://packetstormsecurity.com/files/167794/Open-Xchange-App-Suite-7.10.x-Cross-Site-Scripting-Command-Injection.html No Types Assigned


 
http://packetstormsecurity.com/files/167794/Open-Xchange-App-Suite-7.10.x-Cross-Site-Scripting-Command-Injection.html Exploit, Third Party Advisory, VDB Entry
Changed Reference Type 
http://seclists.org/fulldisclosure/2022/Jul/11 No Types Assigned


 
http://seclists.org/fulldisclosure/2022/Jul/11 Mailing List, Third Party Advisory

CVE Modified by Switzerland Government Common Vulnerability Program 7/22/2022 2:15:08 PM

Action Type Old Value New Value
Added Reference 
http://packetstormsecurity.com/files/167794/Open-Xchange-App-Suite-7.10.x-Cross-Site-Scripting-Command-Injection.html [No Types Assigned]

CVE Modified by Switzerland Government Common Vulnerability Program 7/22/2022 2:15:08 AM

Action Type Old Value New Value
Added Reference 
http://seclists.org/fulldisclosure/2022/Jul/11 [No Types Assigned]

Modified Analysis by NIST 3/29/2022 12:28:48 PM

Action Type Old Value New Value
Added CPE Configuration 
OR
 *cpe:2.3:a:netapp:cloud_manager:-:*:*:*:*:*:*:*
 *cpe:2.3:a:netapp:service_level_manager:-:*:*:*:*:*:*:*
 *cpe:2.3:a:netapp:snap_creator_framework:-:*:*:*:*:*:*:*
Changed Reference Type 
https://security.netapp.com/advisory/ntap-20211229-0001/ No Types Assigned


 
https://security.netapp.com/advisory/ntap-20211229-0001/ Third Party Advisory

CVE Modified by Switzerland Government Common Vulnerability Program 12/29/2021 4:15:07 PM

Action Type Old Value New Value
Added Reference 
https://security.netapp.com/advisory/ntap-20211229-0001/ [No Types Assigned]

Initial Analysis by NIST 12/21/2021 10:08:08 PM

Action Type Old Value New Value
Added CVSS V3.1 
NIST AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Added CVSS V2 
NIST (AV:N/AC:M/Au:S/C:C/I:C/A:C)
Added CWE 
NIST CWE-502
Added CPE Configuration 
OR
 *cpe:2.3:a:qos:logback:*:*:*:*:*:*:*:* versions up to (including) 1.2.7
 *cpe:2.3:a:qos:logback:1.3.0:alpha0:*:*:*:*:*:*
 *cpe:2.3:a:qos:logback:1.3.0:alpha1:*:*:*:*:*:*
 *cpe:2.3:a:qos:logback:1.3.0:alpha10:*:*:*:*:*:*
 *cpe:2.3:a:qos:logback:1.3.0:alpha2:*:*:*:*:*:*
 *cpe:2.3:a:qos:logback:1.3.0:alpha3:*:*:*:*:*:*
 *cpe:2.3:a:qos:logback:1.3.0:alpha4:*:*:*:*:*:*
 *cpe:2.3:a:qos:logback:1.3.0:alpha5:*:*:*:*:*:*
 *cpe:2.3:a:qos:logback:1.3.0:alpha6:*:*:*:*:*:*
 *cpe:2.3:a:qos:logback:1.3.0:alpha7:*:*:*:*:*:*
 *cpe:2.3:a:qos:logback:1.3.0:alpha8:*:*:*:*:*:*
 *cpe:2.3:a:qos:logback:1.3.0:alpha9:*:*:*:*:*:*
Added CPE Configuration 
OR
 *cpe:2.3:a:redhat:satellite:6.0:*:*:*:*:*:*:*
Changed Reference Type 
http://logback.qos.ch/news.html No Types Assigned


 
http://logback.qos.ch/news.html Vendor Advisory
Changed Reference Type 
https://github.com/cn-panda/logbackRceDemo No Types Assigned


 
https://github.com/cn-panda/logbackRceDemo Exploit, Third Party Advisory
Changed Reference Type 
https://jira.qos.ch/browse/LOGBACK-1591 No Types Assigned


 
https://jira.qos.ch/browse/LOGBACK-1591 Exploit, Issue Tracking, Patch, Third Party Advisory

Quick Info

CVE Dictionary Entry:
CVE-2021-42550
NVD Published Date:
12/16/2021
NVD Last Modified:
06/17/2026
Source:
Switzerland Government Common Vulnerability Program