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CVE-2024-43785

CVE-2024-43785: gitoxide-core does not neutralize special characters for terminals

Summary

The gix and ein commands write pathnames and other metadata literally to terminals, even if they contain characters terminals treat specially, including ANSI escape sequences. This sometimes allows an untrusted repository to misrepresent its contents and to alter or concoct error messages.

Details

gitoxide-core, which provides most underlying functionality of the gix and ein commands, does not neutralize newlines, backspaces, or control characters—including those that form ANSI escape sequences—that appear in a repository's paths, author and committer names, commit messages, or other metadata. Such text may be written as part of the output of a command, as well as appearing in error messages when an operation fails.

ANSI escape sequences are of particular concern because, when printed to a terminal, they can change colors, including to render subsequent text unreadable; reposition the cursor to write text in a different location, including where text has already been written; clear the terminal; set the terminal title-bar text to arbitrary values; render the terminal temporarily unusable; and other such operations.

The effect is mostly an annoyance. But the author of a malicious repository who can predict how information from the repository may be accessed can cause files in the repository to be concealed or otherwise misrepresented, as well as rewrite all or part of error messages, or mimic error messages convincingly by repositioning the cursor and writing colored text.

PoC

On a Unix-like system in a POSIX-compatible shell, run:

git init misleading-path
cd misleading-path
touch "$(printf '\033]0;Boo!\007\033[2K\r\033[91mError: Repository is corrupted. Run \033[96mEVIL_COMMAND\033[91m to attempt recovery.\033[0m')"
git add .
git commit -m 'Initial commit'

In the repository—or, if desired, in a clone of it, to show that this is exploitable by getting a user to clone an untrusted repository—run this command, which outputs entries in a three-column form showing type, hash, and filename:

gix tree entries

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CVE-2024-43785

CVE-2024-43785:

2.5

CVSS Score

3.1

-

CVSS Score

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
gitoxide-core	rust	<= 0.45.0
gitoxide	rust	<= 0.41.0

Technical Details

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Root Cause Analysis

The vulnerability stems from unsanitized output of repository-controlled data to terminals. Key areas would be: 1) Tree entry rendering (directly shown in PoC), 2) Commit metadata display (mentioned in impact details), and 3) Error message handling (explicitly called out in description). Confidence is medium due to inferred implementation patterns from vulnerability description, though exact function names/paths are estimated based on standard Rust crate organization.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

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WAF Rule

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Reasoning

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CVE-2024-43785: gitoxide-core does not neutralize special characters for terminals

Summary

Details

PoC

CVE-2024-43785:

2.5

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Vulnerable functions

2.5

2.5

CVE-2024-43785: gitoxide-core does not neutralize special characters for terminals

Summary

Details

PoC

Impact

2.5

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CVE-2024-43785: gitoxide-core does not neutralize special characters for terminals

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Details

PoC

CVE-2024-43785:

2.5

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Technical Details

Technical Details

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Vulnerable functions

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Vulnerable functions

2.5

2.5

CVE-2024-43785: gitoxide-core does not neutralize special characters for terminals

Summary

Details

PoC

Impact

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