Exploitation Summary
EIP tracks 1 public exploit for CVE-2018-16890. PoCs published by michelleamesquita.
AI-analyzed exploit summary This PoC demonstrates CVE-2018-16890, an out-of-bounds read flaw in curl's handling of NTLMv2 type-2 headers. It sets up a malicious server that sends crafted NTLM authentication headers to trigger a crash in vulnerable curl clients.
Description
libcurl versions from 7.36.0 to before 7.64.0 is vulnerable to a heap buffer out-of-bounds read. The function handling incoming NTLM type-2 messages (`lib/vauth/ntlm.c:ntlm_decode_type2_target`) does not validate incoming data correctly and is subject to an integer overflow vulnerability. Using that overflow, a malicious or broken NTLM server could trick libcurl to accept a bad length + offset combination that would lead to a buffer read out-of-bounds.
Exploits (1)
This PoC demonstrates CVE-2018-16890, an out-of-bounds read flaw in curl's handling of NTLMv2 type-2 headers. It sets up a malicious server that sends crafted NTLM authentication headers to trigger a crash in vulnerable curl clients.
References (12)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H