A race condition in the postgresql init script could be used by attackers able to access the postgresql account to escalate their privileges to root.
Weakness
The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Postgresql | Postgresql | * | 9.4-0.5.3.1 (excluding) |
Potential Mitigations
- Follow the principle of least privilege when assigning access rights to entities in a software system.
- Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.
Related Attack Patterns
References
- http://lists.suse.com/pipermail/sle-security-updates/2017-November/003420.html
- https://bugzilla.suse.com/show_bug.cgi?id=1062722
- https://www.exploit-db.com/exploits/45184/
- https://www.suse.com/de-de/security/cve/CVE-2017-14798/
- http://lists.suse.com/pipermail/sle-security-updates/2017-November/003420.html
- https://bugzilla.suse.com/show_bug.cgi?id=1062722
- https://www.exploit-db.com/exploits/45184/
- https://www.suse.com/de-de/security/cve/CVE-2017-14798/