Vulnerability · Published Oct 9, 2024 · Assigned by GitHub_M

CVE-2024-47832XML Signature Bypass via differential XML parsing in ssoready

Critical 9.3

In plain English

A critical-severity security flaw in ssoready from ssoready. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)9.3Critical
Exploit odds (30 days)0.4%top 65.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

ssoready is a single sign on provider implemented via docker. Affected versions are vulnerable to XML signature bypass attacks. An attacker can carry out signature bypass if you have access to certain IDP-signed messages. The underlying mechanism exploits differential behavior between XML parsers. Users of https://ssoready.com, the public hosted instance of SSOReady, are unaffected. We advise folks who self-host SSOReady to upgrade to 7f92a06 or later. Do so by updating your SSOReady Docker images from sha-... to sha-7f92a06. There are no known workarounds for this vulnerability.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Gogithub.com/ssoready/ssoready0.0.0-20241009153838-7f92a0630439GHSA-j2hr-q93x-gxvh
Gogithub.com/ssoready/ssoreadyno fix listedGO-2024-3185

Affected products (as reported)

VendorProductVersions
ssoready ssoready < 0.0.0-20241009153838-7f92a0630439

Weakness: CWE-347 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References