CVE-2020-15688: embedthis goahead Authentication Bypass by Capture-replay

Vulnerability summary

CVE-2020-15688 is a high (CVSS 8.8) Authentication Bypass by Capture-replay vulnerability in embedthis goahead. EPSS estimates a 4.04% chance of exploitation in the next 30 days, higher than 90.5% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 23-07-2020
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

The HTTP Digest Authentication in the GoAhead web server before 5.1.2 does not completely protect against replay attacks. This allows an unauthenticated remote attacker to bypass authentication via capture-replay if TLS is not used to protect the underlying communication channel.

• CWE-294Authentication Bypass by Capture-replayA capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).