CVE-2024-0853 (GCVE-0-2024-0853)

Vulnerability from cvelistv5 – Published: 2024-02-03 13:35 – Updated: 2025-06-20 20:04
VLAI
Title
OCSP verification bypass with TLS session reuse
Summary
curl inadvertently kept the SSL session ID for connections in its cache even when the verify status (*OCSP stapling*) test failed. A subsequent transfer to the same hostname could then succeed if the session ID cache was still fresh, which then skipped the verify status check.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-13 19:54 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
curl curl Affected: 8.5.0 , ≤ 8.5.0 (semver)
guessed Create a notification for this product.
Credits
Hiroki Kurosawa Daniel Stenberg
Show details on NVD website
To clipboard 

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              "dateUpdated": "2025-06-20T20:04:04.912Z",
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              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "curl",
              "vendor": "curl",
              "versions": [
                {
                  "lessThanOrEqual": "8.5.0",
                  "status": "affected",
                  "version": "8.5.0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Hiroki Kurosawa"
            },
            {
              "lang": "en",
              "type": "remediation developer",
              "value": "Daniel Stenberg"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "curl inadvertently kept the SSL session ID for connections in its cache even when the verify status (*OCSP stapling*) test failed. A subsequent transfer to\nthe same hostname could then succeed if the session ID cache was still fresh, which then skipped the verify status check."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "description": "CWE-299 Improper Check for Certificate Revocation",
                  "lang": "en"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2024-05-03T13:06:05.485Z",
            "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
            "shortName": "curl"
          },
          "references": [
            {
              "name": "json",
              "url": "https://curl.se/docs/CVE-2024-0853.json"
            },
            {
              "name": "www",
              "url": "https://curl.se/docs/CVE-2024-0853.html"
            },
            {
              "name": "issue",
              "url": "https://hackerone.com/reports/2298922"
            },
            {
              "url": "https://security.netapp.com/advisory/ntap-20240307-0004/"
            },
            {
              "url": "https://security.netapp.com/advisory/ntap-20240426-0009/"
            },
            {
              "url": "https://security.netapp.com/advisory/ntap-20240503-0012/"
            }
          ],
          "title": "OCSP verification bypass with TLS session reuse"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "assignerShortName": "curl",
        "cveId": "CVE-2024-0853",
        "datePublished": "2024-02-03T13:35:25.863Z",
        "dateReserved": "2024-01-24T08:42:02.618Z",
        "dateUpdated": "2025-06-20T20:04:09.066Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.