CVE-2019-13115
HIGHlibssh2 < 1.9.0 - Integer Overflow leading to Out-of-Bounds Read in SSH Key Exchange
Title source: llmExploitation Summary
EIP tracks 2 public exploits for CVE-2019-13115. PoCs published by viz27, CSSProject.
AI-analyzed exploit summary This repository provides a technical writeup and setup instructions for exploiting CVE-2019-13115, an out-of-bounds read vulnerability in libssh2. It includes steps to configure a malicious SSH server and verify the crash but lacks functional exploit code.
Description
In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server. This is related to an _libssh2_check_length mistake, and is different from the various issues fixed in 1.8.1, such as CVE-2019-3855.
Exploits (2)
This repository provides a technical writeup and setup instructions for exploiting CVE-2019-13115, an out-of-bounds read vulnerability in libssh2. It includes steps to configure a malicious SSH server and verify the crash but lacks functional exploit code.
The repository contains only a README with goals for developing an exploit for CVE-2019-13115 but no actual exploit code or technical details. It outlines a plan to create a malicious server to trigger crashes or retrieve data from libssh2 clients but lacks implementation.
References (15)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H