CVE-2023-43660: warp-tech warpgate Improper Authentication
Vulnerability summary
CVE-2023-43660 is a high (CVSS 8.1) Improper Authentication vulnerability in warp-tech warpgate. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21.5% of scored vulnerabilities.
Timeline
- 27-09-2023PublishedVulnerability first disclosed.
- 20-09-2024Last modifiedVulnerability information updated.
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 metrics
2 scores · 2 sources · 1 version- CVE.orgCNA4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:NDiffers
EPSS trend
Probability
0.30%
Chance of exploitation in the next 30 days
Percentile
22%
Versus all other CVEs
30-day change
+0.05 pp
From 0.25% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-287Improper AuthenticationWhen an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
- CWE-347Improper Verification of Cryptographic SignatureThe product does not verify, or incorrectly verifies, the cryptographic signature for data.
Affected systems
2 vendors · 2 products
References
2 links- github.com/warp-tech/warpgate/security/advisories/GHSA-3cjp-w4cp-m9c8X Refsource CONFIRMVendor Advisory