Strongswan · Strongswan · CVE-2018-16151
Name of the Vulnerable Software and Affected Versions:
strongSwan versions 4.x through 5.x before 5.7.0
Description:
The issue is related to the verify emsa pkcs1 signature() function in the gmp plugin, which does not correctly verify cryptographic signatures. This can allow a remote attacker to forge signatures when small public exponents are used, potentially leading to impersonation when only an RSA signature is used for IKEv2 authentication.
Recommendations:
For strongSwan versions 4.x through 5.x before 5.7.0, update to version 5.7.0 or later to resolve the issue.
As a temporary workaround, consider restricting the use of small public exponents in RSA signatures until a patch is available.