Detections
Analytics

SCA: security update for RestSharp (GHSA-4rr6-2v9v-wcpc)

medium Tenable Self-Hosted Container Security Plugin ID 410381

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2024-45302)

See Also

https://github.com/advisories/GHSA-4rr6-2v9v-wcpc

Plugin Details

Severity: Medium

ID: 410381

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.58

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2024-45302

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.7

Threat Score: 5.7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/29/2024

Vulnerability Publication Date: 8/29/2024

Reference Information

CVE: CVE-2024-45302