CVE-2020-11020
Faye (NPM, RubyGem) versions greater than 0.5.0 and before 1.0.4, 1.1.3 and 1.2.5, has the potential for authentication bypass in the extension system.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Faye (NPM, RubyGem) versions greater than 0.5.0 and before 1.0.4, 1.1.3 and 1.2.5, has the potential for authentication bypass in the extension system. The vulnerability allows any client to bypass checks put in place by server-side extensions, by appending extra segments to the message channel. It is patched in versions 1.0.4, 1.1.3 and 1.2.5.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.53% probability · 73th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- faye project/faye
- Source
- security-advisories@github.com
References
- https://github.com/faye/faye/commit/65d297d341b607f3cb0b5fa6021a625a991cc30ePatch, Third Party Advisory
- https://github.com/faye/faye/security/advisories/GHSA-qpg4-4w7w-2mq5Exploit, Mitigation, Third Party Advisory
- https://github.com/faye/faye/commit/65d297d341b607f3cb0b5fa6021a625a991cc30ePatch, Third Party Advisory
- https://github.com/faye/faye/security/advisories/GHSA-qpg4-4w7w-2mq5Exploit, Mitigation, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.