{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-45302","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2024-08-26T18:25:35.443Z","datePublished":"2024-08-29T21:18:43.261Z","dateUpdated":"2024-08-30T14:55:34.162Z"},"containers":{"cna":{"title":"CRLF Injection in RestSharp's `RestRequest.AddHeader` method","problemTypes":[{"descriptions":[{"cweId":"CWE-93","lang":"en","description":"CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/restsharp/RestSharp/security/advisories/GHSA-4rr6-2v9v-wcpc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/restsharp/RestSharp/security/advisories/GHSA-4rr6-2v9v-wcpc"},{"name":"https://github.com/restsharp/RestSharp/commit/0fba5e727d241b1867bd71efc912594075c2934b","tags":["x_refsource_MISC"],"url":"https://github.com/restsharp/RestSharp/commit/0fba5e727d241b1867bd71efc912594075c2934b"},{"name":"https://github.com/restsharp/RestSharp/blob/777bf194ec2d14271e7807cc704e73ec18fcaf7e/src/RestSharp/Request/HttpRequestMessageExtensions.cs#L32","tags":["x_refsource_MISC"],"url":"https://github.com/restsharp/RestSharp/blob/777bf194ec2d14271e7807cc704e73ec18fcaf7e/src/RestSharp/Request/HttpRequestMessageExtensions.cs#L32"}],"affected":[{"vendor":"restsharp","product":"RestSharp","versions":[{"version":">= 107, < 112.0.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2024-08-29T21:18:43.261Z"},"descriptions":[{"lang":"en","value":"RestSharp is a Simple REST and HTTP API Client for .NET. The second argument to `RestRequest.AddHeader` (the header value) is vulnerable to CRLF injection. The same applies to `RestRequest.AddOrUpdateHeader` and `RestClient.AddDefaultHeader`. The way HTTP headers are added to a request is via the `HttpHeaders.TryAddWithoutValidation` method which does not check for CRLF characters in the header value. This means that any headers from a `RestSharp.RequestHeaders` object are added to the request in such a way that they are vulnerable to CRLF-injection. In general, CRLF-injection into a HTTP header (when using HTTP/1.1) means that one can inject additional HTTP headers or smuggle whole HTTP requests. If an application using the RestSharp library passes a user-controllable value through to a header, then that application becomes vulnerable to CRLF-injection. This is not necessarily a security issue for a command line application like the one above, but if such code were present in a web application then it becomes vulnerable to request splitting (as shown in the PoC) and thus Server Side Request Forgery. Strictly speaking this is a potential vulnerability in applications using RestSharp, not in RestSharp itself, but I would argue that at the very least there needs to be a warning about this behaviour in the RestSharp documentation. RestSharp has addressed this issue in version 112.0.0. All users are advised to upgrade. There are no known workarounds for this vulnerability."}],"source":{"advisory":"GHSA-4rr6-2v9v-wcpc","discovery":"UNKNOWN"}},"adp":[{"affected":[{"vendor":"restsharp","product":"restsharp","cpes":["cpe:2.3:a:restsharp:restsharp:*:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"107","status":"affected","lessThan":"112.0.0","versionType":"custom"}]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-08-30T14:54:23.955865Z","id":"CVE-2024-45302","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-08-30T14:55:34.162Z"}}]}}