CVE-2024-8789: lunary — Exploit & Fix

Description

Lunary-ai/lunary version git 105a3f6 is vulnerable to a Regular Expression Denial of Service (ReDoS) attack. The application allows users to upload their own regular expressions, which are then executed on the server side. Certain regular expressions can have exponential runtime complexity relative to the input size, leading to potential denial of service. An attacker can exploit this by submitting a specially crafted regular expression, causing the server to become unresponsive for an arbitrary length of time.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-1333 CWE-1333

Affected Products

Vendor	Product	Versions
lunary	lunary	< 1.4.23

References

Advisories & Patches

https://github.com/lunary-ai/lunary/commit/7ff89b0304d191534b924cf063f3648206d497fa

Exploits

https://huntr.com/bounties/e32f5f0d-bd46-4268-b6b1-619e07c6fda3

Frequently Asked Questions

What is CVE-2024-8789? +

Lunary-ai/lunary version git 105a3f6 is vulnerable to a Regular Expression Denial of Service (ReDoS) attack. The application allows users to upload their own regular expressions, which are then executed on the server side. Certain regular expressions can have exponential runtime complexity relative to the input size, leading to potential denial of service. An attacker can exploit this by submitting a specially crafted regular expression, causing the server to become unresponsive for an arbitrary length of time. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-8789? +

CVE-2024-8789 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-8789? +

CVE-2024-8789 affects products from lunary, specifically: lunary. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-8789? +

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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CVE-2024-8789