CVE-2023-43660

HIGH EPSS 16.5%
Published Sep 27, 20232y ago · Modified Jun 17, 20262w ago
8.1 CVSS 3.1
High
Find Similar
Published Sep 27, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

Description

Warpgate is a smart SSH, HTTPS and MySQL bastion host for Linux that doesn't need special client apps. The SSH key verification for a user can be bypassed by sending an SSH key offer without a signature. This allows bypassing authentication under following conditions: 1. The attacker knows the username and a valid target name 2. The attacked knows the user's public key and 3. Only SSH public key authentication is required for the user account. This issue has been addressed in version 0.8.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS Details

Base Score
8.1
Exploitability
2.2
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
16.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-287 Improper Authentication Authentication
CWE-347

Affected Products 1

VendorProductVersionRange
warpgate_projectwarpgate* <0.8.1

References 2

  • github.com https://github.com/warp-tech/warpgate/commit/a4df7f7a21395cfaee7a9789d1e3846290caeb63
    Patch
  • github.com https://github.com/warp-tech/warpgate/security/advisories/GHSA-3cjp-w4cp-m9c8
    Vendor Advisory

Remediation

  • github.com https://github.com/warp-tech/warpgate/commit/a4df7f7a21395cfaee7a9789d1e3846290caeb63
    Patch