Headline

CVE-2023-29011: GitHub: CVE-2023-29011 The config file of `connect.exe` is susceptible to malicious placing

Why is this GitHub CVE included in the Security Update Guide?

The vulnerability assigned to this CVE is in Git for Windows software which is consumed by Microsoft Visual Studio. It is being documented in the Security Update Guide to announce that the latest builds of Visual Studio are no longer vulnerable. Please see Security Update Guide Supports CVEs Assigned by Industry Partners for more information.

1 year ago

Microsoft Security Response Center

Open in Source

#vulnerability #web #mac #windows #microsoft #git #auth #ssh #Visual Studio #Security Vulnerability

CVE-ID

Learn more at National Vulnerability Database (NVD)

• CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information

Description

Git for Windows, the Windows port of Git, ships with an executable called `connect.exe`, which implements a SOCKS5 proxy that can be used to connect e.g. to SSH servers via proxies when certain ports are blocked for outgoing connections. The location of `connect.exe`’s config file is hard-coded as `/etc/connectrc` which will typically be interpreted as `C:\etc\connectrc`. Since `C:\etc` can be created by any authenticated user, this makes `connect.exe` susceptible to malicious files being placed there by other users on the same multi-user machine. The problem has been patched in Git for Windows v2.40.1. As a workaround, create the folder `etc` on all drives where Git commands are run, and remove read/write access from those folders. Alternatively, watch out for malicious `<drive>:\etc\connectrc` files on multi-user machines.

References

Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.

MISC:https://github.com/git-for-windows/git/releases/tag/v2.40.1.windows.1
URL:https://github.com/git-for-windows/git/releases/tag/v2.40.1.windows.1
MISC:https://github.com/git-for-windows/git/security/advisories/GHSA-g4fv-xjqw-q7jm
URL:https://github.com/git-for-windows/git/security/advisories/GHSA-g4fv-xjqw-q7jm

Assigning CNA

GitHub (maintainer security advisories)

Date Record Created

20230329

Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.

Phase (Legacy)

Assigned (20230329)

Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)

N/A

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