QID 520014

OpenSSL is a software library for applications that secure communications over computer networks against eavesdropping or need to identify the party at the other end.

While processing a maliciously formatted PKCS12 file may lead OpenSSL to crash leading to a potential Denial of Service (DoS) attack. Applications loading files in the PKCS12 format from untrusted sources might terminate abruptly. A file in PKCS12 format can contain certificates and keys and may come from an untrusted source. The PKCS12 specification allows certain fields to be NULL, but OpenSSL does not correctly check for this case. This can lead to a NULL pointer dereference that results in OpenSSL crashing. If an application processes PKCS12 files from an untrusted source using the OpenSSL APIs then that application will be vulnerable to this issue. OpenSSL APIs that are vulnerable to this are: PKCS12_parse(), PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes() and PKCS12_newpass().

Affected Versions:
OpenSSL version 1.0.2 to 1.0.2zi
OpenSSL version 1.1.1 to 1.1.1w
OpenSSL version 3.0.0 to 3.0.12
OpenSSL version 3.1.0 to 3.1.4
OpenSSL version 3.2.0

QID Detection Logic: (Unauthenticated)
This QID checks the "Server" HTTP Response header to identify vulnerable version of OpenSSL running on the target system.

Successful exploitation of this vulnerability could result in OpenSSL crashing, potentially leading to a Denial of Service (DoS) attack.