Improper Handling of Alternate Data Stream Affecting nodegit package, versions <0.26.3


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Mature
EPSS
15.57% (96th percentile)

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  • Snyk IDSNYK-JS-NODEGIT-542721
  • published7 Jan 2020
  • disclosed10 Dec 2019
  • creditUnknown

Introduced: 10 Dec 2019

CVE-2019-1352  (opens in a new tab)
CWE-69  (opens in a new tab)

How to fix?

Upgrade nodegit to version 0.26.3 or higher.

Overview

nodegit is a Node bindings to the libgit2 project.

Affected versions of this package are vulnerable to Improper Handling of Alternate Data Stream. Git was unaware of NTFS Alternate Data Streams, allowing files inside the .git/ directory to be overwritten during a clone.

While the description contains "NTFS", this vulnerability can not only be exploited on Windows, but also on macOS when working on smb://-mounted network shares. The exploit involves naming a directory .git::$INDEX_ALLOCATION, allowing remote code execution during a regular git clone.

The fix for this CVE requires the fix for CVE-2019-1353.

CVSS Scores

version 3.1