CVE-2024-31992: mealie DoS — Fix

Description

Mealie is a self hosted recipe manager and meal planner. Prior to 1.4.0, the safe_scrape_html function utilizes a user-controlled URL to issue a request to a remote server, however these requests are not rate-limited. While there are efforts to prevent DDoS by implementing a timeout on requests, it is possible for an attacker to issue a large number of requests to the server which will be handled in batches based on the configuration of the Mealie server. The chunking of responses is helpful for mitigating memory exhaustion on the Mealie server, however a single request to an arbitrarily large external file (e.g. a Debian ISO) is often sufficient to completely saturate a CPU core assigned to the Mealie container. Without rate limiting in place, it is possible to not only sustain traffic against an external target indefinitely, but also to exhaust the CPU resources assigned to the Mealie container. This vulnerability is fixed in 1.4.0.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

CWE-770 CWE-770

Affected Products

Vendor	Product	Versions
mealie	mealie	< 1.4.0

References

Advisories & Patches

https://github.com/mealie-recipes/mealie/commit/2a3463b7466bc297aede50046da9550d919ec56f https://github.com/mealie-recipes/mealie/commit/2a3463b7466bc297aede50046da9550d919ec56f

Other References

https://github.com/mealie-recipes/mealie/blob/mealie-next/mealie/services/scraper/scraper_strategies.py#L27-L70 https://github.com/mealie-recipes/mealie/pull/3368 https://securitylab.github.com/advisories/GHSL-2023-225_GHSL-2023-226_Mealie/ https://github.com/mealie-recipes/mealie/blob/mealie-next/mealie/services/scraper/scraper_strategies.py#L27-L70 https://github.com/mealie-recipes/mealie/pull/3368 https://securitylab.github.com/advisories/GHSL-2023-225_GHSL-2023-226_Mealie/

Frequently Asked Questions

What is CVE-2024-31992? +

Mealie is a self hosted recipe manager and meal planner. Prior to 1.4.0, the safe_scrape_html function utilizes a user-controlled URL to issue a request to a remote server, however these requests are not rate-limited. While there are efforts to prevent DDoS by implementing a timeout on requests, it is possible for an attacker to issue a large number of requests to the server which will be handled in batches based on the configuration of the Mealie server. The chunking of responses is helpful for mitigating memory exhaustion on the Mealie server, however a single request to an arbitrarily large external file (e.g. a Debian ISO) is often sufficient to completely saturate a CPU core assigned to the Mealie container. Without rate limiting in place, it is possible to not only sustain traffic against an external target indefinitely, but also to exhaust the CPU resources assigned to the Mealie container. This vulnerability is fixed in 1.4.0. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2024-31992? +

CVE-2024-31992 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-31992? +

CVE-2024-31992 affects products from mealie, specifically: mealie. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-31992? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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