mailcow prior 2022-06a os command injection

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability was found in mailcow. It has been classified as critical. The impacted element is an unknown function. This manipulation of the argument regexmess/skipmess/regexflag/delete2foldersonly/delete2foldersbutnot/regextrans2/pipemess/maxlinelengthcmd causes os command injection. This vulnerability is handled as CVE-2022-31138. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in mailcow. It has been declared as critical. Affected by this vulnerability is an unknown code block. The manipulation of the argument regexmess/skipmess/regexflag/delete2foldersonly/delete2foldersbutnot/regextrans2/pipemess/maxlinelengthcmd with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

mailcow is a mailserver suite. Prior to mailcow-dockerized version 2022-06a, an extended privilege vulnerability can be exploited by manipulating the custom parameters regexmess, skipmess, regexflag, delete2foldersonly, delete2foldersbutnot, regextrans2, pipemess, or maxlinelengthcmd to execute arbitrary code. Users should update their mailcow instances with the `update.sh` script in the mailcow root directory to 2022-06a or newer to receive a patch for this issue. As a temporary workaround, the Syncjob ACL can be removed from all mailbox users, preventing changes to those settings.

The weakness was released 07/12/2022 as GHSA-vx9w-h33p-5vhc. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2022-31138 since 05/18/2022. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading to version 2022-06a eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch d373164e13a14e058f82c9f1918a5612f375a9f9 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: mailcow 2022-06a
Patch: d373164e13a14e058f82c9f1918a5612f375a9f9

Timelineinfo

05/18/2022 🔍
07/12/2022 +55 days 🔍
07/12/2022 +0 days 🔍
07/21/2022 +9 days 🔍

Sourcesinfo

Advisory: GHSA-vx9w-h33p-5vhc
Status: Confirmed

CVE: CVE-2022-31138 (🔍)
GCVE (CVE): GCVE-0-2022-31138
GCVE (VulDB): GCVE-100-203551

Entryinfo

Created: 07/12/2022 12:30
Updated: 07/21/2022 12:27
Changes: 07/12/2022 12:30 (52), 07/21/2022 12:27 (7)
Complete: 🔍
Cache ID: 216::103

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