CVE-2021-32738

Sažetak

js-stellar-sdk is a Javascript library for communicating with a Stellar Horizon server. 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. In js-stellar-sdk before version 8.2.3, the function does not verify that the server has signed the transaction. 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 version 8.2.3, the first version with a patch for this vulnerability, to ensure that the challenge transaction is completely valid and signed by the server creating the challenge transaction.

Reference

CVSS

Base:	4.0
Impact:	2.9
Exploitability:	8.0

Pristup

Vektor	Složenost	Autentikacija
NETWORK	LOW	SINGLE

Impact

Povjerljivost	Cjelovitost	Dostupnost
NONE	PARTIAL	NONE

CVSS vektor

AV:N/AC:L/Au:S/C:N/I:P/A:N

Zadnje važnije ažuriranje

02-07-2022 - 21:07

Objavljeno

02-07-2021 - 19:15