PT-2023-20525 · Unknown · Ithewei/Libhv

Alessio Della Libera · Published 2023-09-28 · Updated 2023-10-02 · CVE-2023-26147

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions ithewei/libhv versions all

Description The issue arises when untrusted user input is used to build header values, allowing an attacker to inject malicious content by adding carriage return line feeds (r ) to end the HTTP response headers. This can lead to a potential XSS vulnerability, enabling the attacker to inject additional headers or a new response body.

Recommendations For all versions, consider validating and sanitizing user input to prevent the injection of malicious characters, such as r , into HTTP response headers. As a temporary workaround, restrict the use of user-inputted data in building header values until a more comprehensive fix is available.

Exploit

Fix

XSS

Weakness Enumeration

CWE-113

CWE-79

Related Identifiers

CVE-2023-26147

Affected Products

Ithewei/Libhv

References · 6

• 🔥 https://gist.github.com/dellalibera/2be265b56b7b3b00de1a777b9dec0c7b · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-26147 · Security Note
• https://osv.dev/vulnerability/CVE-2023-26147 · Vendor Advisory
• https://security.snyk.io/vuln/SNYK-UNMANAGED-ITHEWEILIBHV-5730768 · Note
• https://t.me/cibsecurity/71261 · Telegram Post
• https://twitter.com/CVEnew/status/1707624915640234432 · Twitter Post