CVE-2024-9681

When curl is asked to use HSTS, the expiry time for a subdomain might overwrite a parent domain's cache entry, making it end sooner or later than otherwise intended. This affects curl using applications that enable HSTS and use URLs with the insecure `HTTP://` scheme and perform transfers with hosts like `x.example.com` as well as `example.com` where the first host is a subdomain of the second host. (The HSTS cache either needs to have been populated manually or there needs to have been previous HTTPS accesses done as the cache needs to have entries for the domains involved to trigger this problem.) When `x.example.com` responds with `Strict-Transport-Security:` headers, this bug can make the subdomain's expiry timeout *bleed over* and get set for the parent domain `example.com` in curl's HSTS cache. The result of a triggered bug is that HTTP accesses to `example.com` get converted to HTTPS for a different period of time than what was asked for by the origin server. If `example.com` for example stops supporting HTTPS at its expiry time, curl might then fail to access `http://example.com` until the (wrongly set) timeout expires. This bug can also expire the parent's entry *earlier*, thus making curl inadvertently switch back to insecure HTTP earlier than otherwise intended.
References
Configurations

Configuration 1 (hide)

cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*

History

13 Dec 2024, 14:15

Type Values Removed Values Added
References
  • () https://security.netapp.com/advisory/ntap-20241213-0006/ -

25 Nov 2024, 19:52

Type Values Removed Values Added
CWE CWE-697
CPE cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
First Time Haxx
Haxx curl
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 6.5
References
  • () http://www.openwall.com/lists/oss-security/2024/11/06/2 - Mailing List, Patch, Third Party Advisory
References () https://curl.se/docs/CVE-2024-9681.json - () https://curl.se/docs/CVE-2024-9681.json - Vendor Advisory
References () https://hackerone.com/reports/2764830 - () https://hackerone.com/reports/2764830 - Exploit, Issue Tracking, Patch, Third Party Advisory
References () https://curl.se/docs/CVE-2024-9681.html - () https://curl.se/docs/CVE-2024-9681.html - Patch, Vendor Advisory

06 Nov 2024, 08:15

Type Values Removed Values Added
New CVE

Information

Published : 2024-11-06 08:15

Updated : 2024-12-13 14:15


NVD link : CVE-2024-9681

Mitre link : CVE-2024-9681


JSON object : View

Products Affected

haxx

  • curl
CWE
CWE-697

Incorrect Comparison