CVE-2024-2466 TLS certificate check bypass with mbedTLS

2024-03-2707:58:24

curl

github.com

cve-2024-2466

tls certificate

libcurl

mbedtls

ip address

certificate check

https

ftps

imaps

pops3

smtps

AI Score

6.6

Confidence

High

SSVC

Exploitation

poc

Automatable

Technical Impact

partial

JSON

libcurl did not check the server certificate of TLS connections done to a host specified as an IP address, when built to use mbedTLS. libcurl would wrongly avoid using the set hostname function when the specified hostname was given as an IP address, therefore completely skipping the certificate check. This affects all uses of TLS protocols (HTTPS, FTPS, IMAPS, POPS3, SMTPS, etc).

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:curl:libcurl:8.5.0:*:*:*:*:*:*:*"
    ],
    "vendor": "curl",
    "product": "libcurl",
    "versions": [
      {
        "status": "affected",
        "version": "8.5.0",
        "versionType": "custom",
        "lessThanOrEqual": "8.6.0"
      }
    ],
    "defaultStatus": "unaffected"
  }
]