logback up to 1.2.7 Configuration File deserialization

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability, which was classified as problematic, was found in logback up to 1.2.7. Affected is an unknown functionality of the component Configuration File Handler. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 12/17/2021. The advisory is available at jira.qos.ch. This vulnerability is traded as CVE-2021-42550 since 10/15/2021. Technical details are unknown but a public exploit is available.

It is declared as proof-of-concept. The exploit is shared for download at github.com.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.1
VulDB Temp Score: 3.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.6
CNA Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/15/2021 CVE reserved
12/17/2021 +63 days Advisory disclosed
12/17/2021 +0 days VulDB entry created
12/22/2021 +5 days VulDB last update

Sourcesinfo

Advisory: jira.qos.ch
Status: Not defined
Confirmation: 🔒

CVE: CVE-2021-42550 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 12/17/2021 07:57 AM
Updated: 12/22/2021 06:26 PM
Changes: 12/17/2021 07:57 AM (47), 12/22/2021 06:26 PM (2)
Complete: 🔍

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