Zammad up to 4.1.0 Custom Package command injection

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Zammad up to 4.1.0. This affects an unknown part of the component Custom Package Handler. This manipulation causes command injection. This vulnerability is tracked as CVE-2021-42094. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Zammad up to 4.1.0. Affected by this vulnerability is an unknown functionality of the component Custom Package Handler. The manipulation with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 10/08/2021 as zaa-2021-18. It is possible to read the advisory at zammad.com. This vulnerability is known as CVE-2021-42094 since 10/07/2021. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading to version 4.1.1 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Zammad 4.1.1

Timelineinfo

10/07/2021 🔍
10/08/2021 +1 days 🔍
10/08/2021 +0 days 🔍
10/14/2021 +6 days 🔍

Sourcesinfo

Advisory: zaa-2021-18
Status: Confirmed

CVE: CVE-2021-42094 (🔍)
GCVE (CVE): GCVE-0-2021-42094
GCVE (VulDB): GCVE-100-184087

Entryinfo

Created: 10/08/2021 09:53
Updated: 10/14/2021 08:18
Changes: 10/08/2021 09:53 (39), 10/14/2021 08:18 (1)
Complete: 🔍
Cache ID: 216::103

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