CVE-2023-26033 Gentoo soko contains DoS attack based on SQL Injection
Attackers can inject SQL via cookies to wipe or modify the public package database, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-26033?
CVE-2023-26033 is a high-severity SQL injection vulnerability in gentoo soko, published on 24 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Gentoo soko is the code that powers packages.gentoo.org. Versions prior to 1.0.1 are vulnerable to SQL Injection, leading to a Denial of Service. If the user selects (in user preferences) the "Recently Visited Packages" view for the index page, the value of the `search_history` cookie is used as a base64 encoded comma separated list of atoms. These are string loaded directly into the SQL query with `atom = '%s'` format string. As a result, any user can modify the browser's cookie value and inject most SQL queries. A proof of concept malformed cookie was generated that wiped the database or changed it's content. On the database, only public data is stored, so there is no confidentiality issues to site users. If it is known that the database was modified, a full restoration of data is possible by performing a full database wipe and performing full update of all components. This issue is patched with commit id 5ae9ca83b73. Version 1.0.1 contains the patch. If users are unable to upgrade immediately, the following workarounds may be applied: (1.) Use a proxy to always drop the `search_history` cookie until upgraded. The impact on user experience is low. (2.) Sanitize to the value of `search_history` cookie after base64 decoding it.
Weakness: CWE-89
Which versions are affected by CVE-2023-26033?
It affects 1 product.
Products include Gentoo Soko.
How do I fix CVE-2023-26033?
No fix has been published for CVE-2023-26033 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2023-26033 being exploited?
There is no known exploitation of CVE-2023-26033 in the wild and no public exploit code.
Other vulnerabilities in gentoo soko
Sources
Also known as GHSA-gp8g-jfq9-5q2g.