SB2018070603 - SUSE Linux update for git-annex
Published: July 6, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Data exfiltration attack (CVE-ID: CVE-2018-10857)
The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.
The vulnerability exists due to private data exfiltration attack. A remote attacker can run git-annex addurl --relaxed file:///etc/passwd and commit this to the repository in some out of the way place. After the victim's git repository receives that change, git-annex follows the attacker-provided url to private data, which it stores in the git-annex repository. From there it transfers the content to the git-annex repository that the attacker has access to.
2) Gpg decryption attack (CVE-ID: CVE-2018-10859)
The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.
The vulnerability exists due to gpg decryption attack. A remote attacker can gain control of the server hosting an encrypted special remote used by the victim's git-annex repository, uses git annex addurl --relaxed with an innocuous url, trick the user's git-annex into downloading it, and uploading an (encrypted) copy to the special remote they also control, send the content of a gpg encrypted file that they wish to have decrypted in its place.
Remediation
Install update from vendor's website.