FKIE_CVE-2021-22538

Vulnerability from fkie_nvd - Published: 2021-03-31 21:15 - Updated: 2024-11-21 05:50
Severity ?
6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A privilege escalation vulnerability impacting the Google Exposure Notification Verification Server (versions prior to 0.23.1), allows an attacker who (1) has UserWrite permissions and (2) is using a carefully crafted request or malicious proxy, to create another user with higher privileges than their own. This occurs due to insufficient checks on the allowed set of permissions. The new user creation event would be captured in the Event Log.
References
cve-coordination@google.comhttps://github.com/google/exposure-notifications-verification-server/commit/eb8cf40b12dbe79304f1133c06fb73419383cd95Patch, Third Party Advisory
cve-coordination@google.comhttps://github.com/google/exposure-notifications-verification-server/releases/tag/v0.23.1Release Notes, Third Party Advisory
cve-coordination@google.comhttps://github.com/google/exposure-notifications-verification-server/releases/tag/v0.24.0Release Notes, Third Party Advisory
cve-coordination@google.comhttps://github.com/google/exposure-notifications-verification-server/security/advisories/GHSA-5v95-v8c8-3rh6Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/google/exposure-notifications-verification-server/commit/eb8cf40b12dbe79304f1133c06fb73419383cd95Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/google/exposure-notifications-verification-server/releases/tag/v0.23.1Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/google/exposure-notifications-verification-server/releases/tag/v0.24.0Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/google/exposure-notifications-verification-server/security/advisories/GHSA-5v95-v8c8-3rh6Third Party Advisory
Impacted products
Vendor Product Version
google exposure_notifications_verification_server *
To clipboard 

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    }
  ],
  "id": "CVE-2021-22538",
  "lastModified": "2024-11-21T05:50:17.910",
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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