Vulnerability in Google Oauth Client Library For Java
CVE-2021-22573
The vulnerability is that IDToken verifier does not verify if token is properly signed. Signature verification makes sure that the token's payload comes from valid provider, not from someone else. An attacker can provide a compromised token with custom payload. The token will pass the validation on the client side. We recommend upgrading to version 1.33.3 or above
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (20.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Google Oauth Client Library For Java
- Google Llc Google-Oauth-Java-Client — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/googleapis/google-oauth-java-client/pull/872 (Patch, Third Party Advisory, Release Notes, Issue Tracking)
Frequently asked questions
- What is CVE-2021-22573?
- CVE-2021-22573 is a high-severity vulnerability in Google Oauth Client Library For Java, classified under Improper Verification of Cryptographic Signature. CVSS score: 8.7/10. Published 2022-05-03.
- How severe is CVE-2021-22573?
- High severity. CVSS v3 base score is 8.7 out of 10.
- Is CVE-2021-22573 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.