#VU99865 Comparison using wrong factors in cURL - CVE-2024-9681

Vulnerability identifier: #VU99865

Vulnerability risk: Low

CVSSv4.0: 0.2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-9681

CWE-ID: CWE-1025

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
cURL
Client/Desktop applications / Other client software

Vendor: curl.haxx.se

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to an error in HSTS cache implementation. When curl is asked to use HSTS, the expiry time for a subdomain can overwrite a parent domain's cache entry, making it end sooner or later than otherwise intended. This can lead to situations when the website becomes unavailable or force the client to switch to HTTP from HTTP connection earlier than intended.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

cURL: 7.74.0 - 8.10.1

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External links
https://curl.haxx.se/docs/CVE-2024-9681.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.