CVE-2021-42550

RCE from attacker with configuration edit priviledges through JNDI lookup

Severity Score

6.6

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

En logback versiones 1.2.7 y anteriores, un atacante con los privilegios necesarios para editar archivos de configuración podría diseñar una configuración maliciosa que permitiera ejecutar código arbitrario cargado desde servidores LDAP

A flaw was found in the logback package. When using a specially-crafted configuration, this issue could allow a remote authenticated attacker to execute arbitrary code loaded from LDAP servers.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-10-15 CVE Reserved
2021-12-16 CVE Published
2023-08-07 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-502: Deserialization of Untrusted Data

CAPEC

References (9)

URL	Tag	Source
http://seclists.org/fulldisclosure/2022/Jul/11	Mailing List
https://cert-portal.siemens.com/productcert/pdf/ssa-371761.pdf	Third Party Advisory
https://security.netapp.com/advisory/ntap-20211229-0001	Third Party Advisory

URL	Date	SRC
http://packetstormsecurity.com/files/167794/Open-Xchange-App-Suite-7.10.x-Cross-Site-Scripting-Command-Injection.html	2024-08-04
https://github.com/cn-panda/logbackRceDemo	2024-08-04
https://jira.qos.ch/browse/LOGBACK-1591	2024-08-04

URL	Date	SRC

URL	Date	SRC
http://logback.qos.ch/news.html	2022-12-12
https://access.redhat.com/security/cve/CVE-2021-42550	2022-07-07
https://bugzilla.redhat.com/show_bug.cgi?id=2033560	2022-07-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Qos Search vendor "Qos"		Logback Search vendor "Qos" for product "Logback"				<= 1.2.7 Search vendor "Qos" for product "Logback" and version " <= 1.2.7"		-		Affected
Qos Search vendor "Qos"		Logback Search vendor "Qos" for product "Logback"				1.3.0 Search vendor "Qos" for product "Logback" and version "1.3.0"		alpha0		Affected
Qos Search vendor "Qos"		Logback Search vendor "Qos" for product "Logback"				1.3.0 Search vendor "Qos" for product "Logback" and version "1.3.0"		alpha1		Affected
Qos Search vendor "Qos"		Logback Search vendor "Qos" for product "Logback"				1.3.0 Search vendor "Qos" for product "Logback" and version "1.3.0"		alpha10		Affected
Qos Search vendor "Qos"		Logback Search vendor "Qos" for product "Logback"				1.3.0 Search vendor "Qos" for product "Logback" and version "1.3.0"		alpha2		Affected
Qos Search vendor "Qos"		Logback Search vendor "Qos" for product "Logback"				1.3.0 Search vendor "Qos" for product "Logback" and version "1.3.0"		alpha3		Affected
Qos Search vendor "Qos"		Logback Search vendor "Qos" for product "Logback"				1.3.0 Search vendor "Qos" for product "Logback" and version "1.3.0"		alpha4		Affected
Qos Search vendor "Qos"		Logback Search vendor "Qos" for product "Logback"				1.3.0 Search vendor "Qos" for product "Logback" and version "1.3.0"		alpha5		Affected
Qos Search vendor "Qos"		Logback Search vendor "Qos" for product "Logback"				1.3.0 Search vendor "Qos" for product "Logback" and version "1.3.0"		alpha6		Affected
Qos Search vendor "Qos"		Logback Search vendor "Qos" for product "Logback"				1.3.0 Search vendor "Qos" for product "Logback" and version "1.3.0"		alpha7		Affected
Qos Search vendor "Qos"		Logback Search vendor "Qos" for product "Logback"				1.3.0 Search vendor "Qos" for product "Logback" and version "1.3.0"		alpha8		Affected
Qos Search vendor "Qos"		Logback Search vendor "Qos" for product "Logback"				1.3.0 Search vendor "Qos" for product "Logback" and version "1.3.0"		alpha9		Affected
Redhat Search vendor "Redhat"		Satellite Search vendor "Redhat" for product "Satellite"				6.0 Search vendor "Redhat" for product "Satellite" and version "6.0"		-		Affected
Netapp Search vendor "Netapp"		Cloud Manager Search vendor "Netapp" for product "Cloud Manager"				-		-		Affected
Netapp Search vendor "Netapp"		Service Level Manager Search vendor "Netapp" for product "Service Level Manager"				-		-		Affected
Netapp Search vendor "Netapp"		Snap Creator Framework Search vendor "Netapp" for product "Snap Creator Framework"				-		-		Affected
Siemens Search vendor "Siemens"		Sinec Nms Search vendor "Siemens" for product "Sinec Nms"				< 1.0.3 Search vendor "Siemens" for product "Sinec Nms" and version " < 1.0.3"		-		Affected