Vulnerability · Published Dec 9, 2021 · Assigned by Google

CVE-2021-22568Dart - Publishing to third-party package repositories may expose pub.dev credentials

High 8.8

In plain English

A high-severity security flaw in Dart SDK 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 0.9% (higher than 61% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.9%top 39.0% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

When using the dart pub publish command to publish a package to a third-party package server, the request would be authenticated with an oauth2 access_token that is valid for publishing on pub.dev. Using these obtained credentials, an attacker can impersonate the user on pub.dev. We recommend upgrading past https://github.com/dart-lang/sdk/commit/d787e78d21e12ec1ef712d229940b1172aafcdf8 or beyond version 2.15.0

Affected products (as reported)

Vendor	Product	Versions
Google LLC	Dart SDK	unspecified – before 2.15.0

Weakness: CWE-255 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L

References

https://github.com/dart-lang/sdk/commit/d787e78d21e12ec1ef712d229940b1172aafcdf8 x_refsource_MISC
https://github.com/dart-lang/sdk/blob/main/CHANGELOG.md x_refsource_MISC
https://github.com/dart-lang/sdk/security/advisories/GHSA-r32f-vhjp-qhj7 x_refsource_MISC