Onedev up to 7.2.x HTTP Header /git-prereceive-callback X-Forwarded-For improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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8.1$0-$5k0.00

A vulnerability was found in Onedev up to 7.2.x. It has been rated as critical. This issue affects an unknown code of the file /git-prereceive-callback of the component HTTP Header Handler. The manipulation of the argument X-Forwarded-For with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Onedev is an open source, self-hosted Git Server with CI/CD and Kanban. In versions of Onedev prior to 7.3.0 unauthenticated users can take over a OneDev instance if there is no properly configured reverse proxy. The /git-prereceive-callback endpoint is used by the pre-receive git hook on the server to check for branch protections during a push event. It is only intended to be accessed from localhost, but the check relies on the X-Forwarded-For header. Invoking this endpoint leads to the execution of one of various git commands. The environment variables of this command execution can be controlled via query parameters. This allows attackers to write to arbitrary files, which can in turn lead to the execution of arbitrary code. Such an attack would be very hard to detect, which increases the potential impact even more. Users are advised to upgrade. There are no known workarounds for this issue.

The weakness was presented 09/14/2022 as GHSA-4f9h-h82c-4xm2. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2022-39205 since 09/02/2022. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 7.3.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch f1e97688e4e19d6de1dfa1d00e04655209d39f8e 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.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 8.1

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.0
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

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: Onedev 7.3.0
Patch: f1e97688e4e19d6de1dfa1d00e04655209d39f8e

Timelineinfo

09/02/2022 🔍
09/14/2022 +12 days 🔍
09/14/2022 +0 days 🔍
10/17/2022 +33 days 🔍

Sourcesinfo

Advisory: GHSA-4f9h-h82c-4xm2
Status: Confirmed

CVE: CVE-2022-39205 (🔍)

Entryinfo

Created: 09/14/2022 13:06
Updated: 10/17/2022 11:17
Changes: 09/14/2022 13:06 (55), 10/17/2022 11:17 (11)
Complete: 🔍

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