Vulnerability · Published Dec 9, 2021 · Assigned by Google
CVE-2021-22565Insufficient Granularity of Access Control in GAEN Notification Server
Medium 6.5
In plain English
A medium-severity improper access control in Google Exposure-notifications-verification-server from Google LLC. 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 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 61.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An attacker could prematurely expire a verification code, making it unusable by the patient, making the patient unable to upload their TEKs to generate exposure notifications. We recommend upgrading the Exposure Notification server to V1.1.2 or greater.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/google/exposure-notifications-verification-server | 1.1.2 | GHSA-wx8q-rgfr-cf6v |
| Go | github.com/google/exposure-notifications-verification-server | 1.1.2 | GO-2022-0270 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Google LLC | Google Exposure-notifications-verification-server | unspecified – before 1.1.2 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L