TLS Padding Oracle

Affecting com.madgag.spongycastle:bctls-jdk15on artifact, versions [,1.59)

high severity

Overview

org.bouncycastle:bctls-jdk15on

BouncyCastle TLS prior to version 1.0.3, when configured to use the JCE (Java Cryptography Extension) for cryptographic functions, provides a weak Bleichenbacher oracle when any TLS cipher suite using RSA key exchange is negotiated. An attacker can recover the private key from a vulnerable application. This vulnerability is referred to as ROBOT.

Remediation

Upgrade org.bouncycastle:bctls-jdk15on to version 1.59 or higher.

References

Do your applications use this vulnerable package?

Credit
Hanno Böck, Juraj Somorovsky, Craig Young
CVE
CVE-2017-13098
CWE
CWE-327
Snyk ID
SNYK-JAVA-COMMADGAGSPONGYCASTLE-32032
Disclosed
08 Dec, 2017
Published
03 Jan, 2018