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GoogleOSV:GHSA-R28H-X6HV-2FQ3HistoryNov 10, 2021 - 8:48 p.m.
Improper Verification of Cryptographic Signature in starkbank-ecdsa
2021-11-1020:48:00
Google
osv.dev
9
cryptographic signature
stark bank
java ecdsa
library
verify function
signature forgery
EPSS
0.004
Percentile
74.0%
The verify function in the Stark Bank Java ECDSA library (ecdsa-java) 1.0.0 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.
References
github.com/starkbank/ecdsa-java
github.com/starkbank/ecdsa-java/commit/ed22e484186d6c66d3686bfe39d01bdbabf219b6
github.com/starkbank/ecdsa-java/pull/16
github.com/starkbank/ecdsa-java/releases/tag/v1.0.1
nvd.nist.gov/vuln/detail/CVE-2021-43570
research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries
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