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WS-2020-0060
Good to know:
Date: March 31, 2020
Versions of jsrsasign are vulnerable to Timing Attacks. The signHex function uses a timing-unsafe method for ECDSA key generation and signing. This leaks the length of the scalar, which attackers may use to brute-force the private key. Timing attacks can be used to increase the efficiency of brute-force attacks by removing the exponential increase in entropy gained from longer secrets. This issue only affects the ECDSA functions.
Language: Java
Severity Score
Severity Score
Weakness Type (CWE)
Observable Timing Discrepancy
CWE-208Top Fix
Upgrade Version
Upgrade to version jsrsasign - 8.0.13;org.webjars.bower:jsrsasign:5.0.5;org.webjars.bower:jsrsasign:no_fix;org.webjars.bowergithub.kjur:jsrsasign:9.1.9
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | HIGH |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | HIGH |
| Integrity (I): | NONE |
| Availability (A): | NONE |