Antes que nada, comprobaste que el server es vulnerable a dicha vulnerabilidad?
La Vulnerabilidad esta basada en OpenSSL ASN.1 mediante el ADVISOR:
http://www.openssl.org/news/secadv_20030930.txt
Es decir, que en la mayoria de los casos ocasionara un DoS (Denial Of Service), sobre el mismo codigo se explica el proposito del exploit PoC, igualmente en el texto anteriormente posteado.
1. Certain ASN.1 encodings that are rejected as invalid by the parser
can trigger a bug in the deallocation of the corresponding data
structure, corrupting the stack. This can be used as a denial of service
attack. It is currently unknown whether this can be exploited to run
malicious code. This issue does not affect OpenSSL 0.9.6.
2. Unusual ASN.1 tag values can cause an out of bounds read under
certain circumstances, resulting in a denial of service vulnerability.
3. A malformed public key in a certificate will crash the verify code if
it is set to ignore public key decoding errors. Public key decode errors
are not normally ignored, except for debugging purposes, so this is
unlikely to affect production code. Exploitation of an affected
application would result in a denial of service vulnerability.
4. Due to an error in the SSL/TLS protocol handling, a server will parse
a client certificate when one is not specifically requested. This by
itself is not strictly speaking a vulnerability but it does mean that
*all* SSL/TLS servers that use OpenSSL can be attacked using
vulnerabilities 1, 2 and 3 even if they don't enable client authentication.
-berz3k.
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