Auth bypass in Tyk Tyk-Identity-Broker
CVE-2021-23365
The package github.com/tyktechnologies/tyk-identity-broker before 1.1.1 are vulnerable to Authentication Bypass via the Go XML parser which can cause SAML authentication bypass. This is because the XML parser doesn’t guarantee integrity in the XML round-trip (encoding/decoding XML data).
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.010 (62.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Tyk Tyk-Identity-Broker
- Github.com/tyktechnologies/tyk-Identity-Broker — versions unspecified
Weakness classification (CWE)
References
- snyk.io/vuln/SNYK-GOLANG-GITHUBCOMTYKTECHNOLOGIESTYKIDENTITYBROKER-1089720 (Third Party Advisory)
- github.com/TykTechnologies/tyk-identity-broker/releases/tag/v1.1.1 (Third Party Advisory, Release Notes)
- github.com/TykTechnologies/tyk-identity-broker/commit/243092965b0f93a95a14cb882… (Patch, Third Party Advisory)
- github.com/TykTechnologies/tyk-identity-broker/commit/46f70420e0911e4e8b638575e… (Patch, Third Party Advisory)
- github.com/TykTechnologies/tyk-identity-broker/pull/147 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-23365?
- CVE-2021-23365 is a medium-severity vulnerability in Tyk Tyk-Identity-Broker, classified under Improper Authentication. CVSS score: 4.8/10. Published 2021-04-26.
- How severe is CVE-2021-23365?
- Medium severity. CVSS v3 base score is 4.8 out of 10.