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osvGoogleOSV:GHSA-6CGH-HJPW-Q3GQ
HistoryJul 02, 2021 - 7:20 p.m.

Utils.readChallengeTx does not verify the server account signature

2021-07-0219:20:33
Google
osv.dev
11

0.001 Low

EPSS

Percentile

19.6%

The Utils.readChallengeTx function used in SEP-10 Stellar Web Authentication states in its function documentation that it reads and validates the challenge transaction including verifying that the serverAccountID has signed the transaction. The function does not verify that the server has signed the transaction and has been fixed so that it does in v8.2.3.

Applications that also used Utils.verifyChallengeTxThreshold or Utils.verifyChallengeTxSigners to verify the signatures including the server signature on the challenge transaction are unaffected as those functions verify the server signed the transaction.

Applications calling Utils.readChallengeTx should update to v8.2.3 to ensure that the challenge transaction is completely valid and signed by the server creating the challenge transaction.

CPENameOperatorVersion
stellar-sdklt8.2.3

0.001 Low

EPSS

Percentile

19.6%

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