Wednesday, July 6, 2022
HomeCyber SecurityAlmost 100,000 NPM Customers' Credentials Stolen in GitHub OAuth Breach

Almost 100,000 NPM Customers’ Credentials Stolen in GitHub OAuth Breach

Cloud-based repository internet hosting service GitHub on Friday shared further particulars into the theft of GitHub integration OAuth tokens final month, noting that the attacker was capable of entry inner NPM knowledge and its buyer info.

“Utilizing stolen OAuth person tokens originating from two third-party integrators, Heroku and Travis CI, the attacker was capable of escalate entry to NPM infrastructure,” Greg Ose stated, including the attacker then managed to acquire quite a lot of recordsdata –

  • A database backup of consisting of knowledge as of April 7, 2021, together with an archive of person info from 2015 and all non-public NPM package deal manifests and package deal metadata. The archive contained NPM usernames, password hashes, and e mail addresses for roughly 100,000 customers
  • A set of CSV recordsdata encompassing an archive of all names and model numbers of printed variations of all NPM non-public packages as of April 10, 2022, and
  • A “small subset” of personal packages from two organizations

As a consequence, GitHub is taking the step of resetting the passwords of impacted customers. It is also anticipated to straight notify customers with uncovered non-public package deal manifests, metadata, and personal package deal names and variations over the following couple of days.

The assault chain, as detailed by GitHub, concerned the attacker abusing the OAuth tokens to exfiltrate non-public NPM repositories containing AWS entry keys, and subsequently leveraging them to achieve unauthorized entry to the registry’s infrastructure.

That stated, not one of the packages printed to the registry are believed to have been modified by the adversary nor had been any new variations of current packages uploaded to the repository.

Moreover, the corporate stated the investigation into the OAuth token assault revealed an unrelated challenge that concerned the invention of an unspecified “variety of plaintext person credentials for the npm registry that had been captured in inner logs following the mixing of npm into GitHub logging techniques.”

GitHub famous that it mitigated the issue previous to the invention of the assault marketing campaign and that it had purged the logs containing the plaintext credentials.


The OAuth theft, which GitHub uncovered on April 12, involved an unidentified actor making the most of stolen OAuth person tokens issued to 2 third-party OAuth integrators, Heroku and Travis-CI, to obtain knowledge from dozens of organizations, together with NPM.

The Microsoft-owned subsidiary, earlier this month, known as the marketing campaign “extremely focused” in nature, including “the attacker was solely itemizing organizations in an effort to determine accounts to selectively goal for itemizing and downloading non-public repositories.”

Heroku has since acknowledged that the theft of GitHub integration OAuth tokens additional concerned unauthorized entry to an inner buyer database, prompting the corporate to reset all person passwords.



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