A vulnerability classified as critical has been found in Swift-Server Async HTTP Client up to 1.13.1. Affected is an unknown part. The manipulation with an unknown input leads to a crlf injection vulnerability. CWE is classifying the issue as CWE-93. The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Versions of Async HTTP Client prior to 1.13.2 are vulnerable to a form of targeted request manipulation called CRLF injection. This vulnerability was the result of insufficient validation of HTTP header field values before sending them to the network. Users are vulnerable if they pass untrusted data into HTTP header field values without prior sanitisation. Common use-cases here might be to place usernames from a database into HTTP header fields. This vulnerability allows attackers to inject new HTTP header fields, or entirely new requests, into the data stream. This can cause requests to be understood very differently by the remote server than was intended. In general, this is unlikely to result in data disclosure, but it can result in a number of logical errors and other misbehaviours.

The weakness was published 01/19/2023 as GHSA-v3r5-pjpm-mwgq. The advisory is available at github.com. This vulnerability is traded as CVE-2023-0040 since 01/03/2023. The technical details are unknown and an exploit is not available.

Upgrading to version 1.13.2 eliminates this vulnerability.

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Vendor

• Swift-Server

Name

• Async HTTP Client

Version

• 1.13.0
• 1.13.1

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CPE 2.2info

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