Incorrect default permissions in libgit2-1.0 (Alpine package)

1) Incorrect default permissions

EUVDB-ID: #VU23555

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1353

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists to due none of the NTFS protections are active when accessing a working directory on a regular Windows drive. A local user with access to the system can view contents of files and directories or modify them.

Note: This vulnerability occurs when running Git in the Windows Subsystem for Linux (also known as "WSL").

Mitigation

Install update from vendor's website.

Vulnerable software versions

libgit2-1.0 (Alpine package): 1.0.1-r0

External links

http://git.alpinelinux.org/aports/commit/?id=6425be941961881e542ff2604ea869f94f51c0a8

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.