TLS 1.2 Transcipt Collision attacks against MD5 in key exchange protocol (SLOTH)

A flaw was found in the way TLS 1.2 could use the MD5 hash function for signing ServerKeyExchange and Client Authentication packets during a TLS handshake. A man-in-the-middle attacker able to force a TLS connection to use the MD5 hash function could use this flaw to conduct collision attacks to...

CVE-2015-5887

The TLS Handshake Protocol implementation in Secure Transport in Apple OS X before 10.11 accepts a Certificate Request message within a session in which no Server Key Exchange message has been sent, which allows remote attackers to have an unspecified impact via crafted TLS data...

CVE-2015-5887

CVE-2015-5887 affects Apple macOS Secure Transport: the TLS Handshake Protocol in OS X before 10.11 accepts a CertificateRequest within a session that did not send ServerKeyExchange. This allows remote attackers to influence the TLS negotiation via crafted data, with an unspecified impact. The is...

SSL/TLS Suffers ‘Bar Mitzvah Attack’vulnerability detection method and repair recommendations-vulnerability warning-the black bar safety net

0x01 introduction April Fool's Day is coming, and SSL again due to the Bar Mitzvah Attack vulnerability to get everyone to not mind. Held in Singapore's Black Hat Asia Security Conference, the Imperva security Director Itsik Mantin detailed description of how to use the attack principle,the...

OpenJDK: incorrect tracking of ChangeCipherSpec during SSL/TLS handshake (JSSE, 8057555)

It was discovered that the SSL/TLS implementation in the JSSE component in OpenJDK failed to properly check whether the ChangeCipherSpec was received during the SSL/TLS connection handshake. An MITM attacker could possibly use this flaw to force a connection to be established without encryption...

CVE-2015-0205

The ssl3getcertverify function in s3srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman DH certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via...

CVE-2015-0205

The ssl3getcertverify function in s3srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman DH certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via...

DEBIAN-CVE-2015-0205

The ssl3getcertverify function in s3srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman DH certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via...

Authentication flaw

The ssl3getcertverify function in s3srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman DH certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via...

CVE-2015-0205

CVE-2015-0205 affects OpenSSL 1.0.0 (before 1.0.0p) and 1.0.1 (before 1.0.1k). The issue: a Diffie-Hellman (DH) certificate could be accepted for client authentication without requiring a CertificateVerify message, enabling remote attackers to obtain access without the private key via crafted TLS...

EUVD-2015-0242

The ssl3getcertverify function in s3srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman DH certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via...

CVE-2015-0205

The ssl3getcertverify function in s3srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman DH certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via...

kernel: net: sctp: null pointer dereference when processing authenticated cookie_echo chunk

A flaw was found in the way the Linux kernel processed an authenticated COOKIEECHO chunk during the initialization of an SCTP connection. A remote attacker could use this flaw to crash the system by initiating a specially crafted SCTP handshake in order to trigger a NULL pointer dereference on th...

IBM Tivoli Directory Server TLS NULL Cipher (uncredentialed check)

The IBM Tivoli Directory Server hosted on the remote host supports TLS NULL-MD5 or NULLSHA ciphers. This allows remote, unauthenticated attackers to trigger unencrypted communication via the TLS handshake protocol. Note that this version of Directory Server likely has other vulnerabilities i.e.,...

IBM WebSphere Application Server远程拒绝服务漏洞

BUGTRAQ ID: 55185 CVE ID: CVE-2012-2190 IBM WebSphere Application Server WAS是由IBM遵照开放标准开发并发行的一种应用服务器。 IBM WebSphere Application Server WAS 6.1.0.45之前的6.1.x、7.0.0.25之前的7.0.x、8.0.0.4之前的8.0.x、8.5.0.1之前的8.5.x中，IBM HTTP Server内使用的IBM Global Security Kit...

CVE-2012-2190

IBM Global Security Kit aka GSKit, as used in IBM HTTP Server in IBM WebSphere Application Server WAS 6.1.x before 6.1.0.45, 7.0.x before 7.0.0.25, 8.0.x before 8.0.0.4, and 8.5.x before 8.5.0.1, allows remote attackers to cause a denial of service daemon crash via a crafted ClientHello message i...

Design/Logic Flaw

IBM Global Security Kit aka GSKit, as used in IBM HTTP Server in IBM WebSphere Application Server WAS 6.1.x before 6.1.0.45, 7.0.x before 7.0.0.25, 8.0.x before 8.0.0.4, and 8.5.x before 8.5.0.1, allows remote attackers to cause a denial of service daemon crash via a crafted ClientHello message i...

CVE-2012-2190

IBM Global Security Kit aka GSKit, as used in IBM HTTP Server in IBM WebSphere Application Server WAS 6.1.x before 6.1.0.45, 7.0.x before 7.0.0.25, 8.0.x before 8.0.0.4, and 8.5.x before 8.5.0.1, allows remote attackers to cause a denial of service daemon crash via a crafted ClientHello message i...

Default configuration

The default configuration of TLS in IBM Tivoli Directory Server TDS 6.3 and earlier supports the 1 NULL-MD5 and 2 NULL-SHA ciphers, which allows remote attackers to trigger unencrypted communication via the TLS Handshake Protocol...

Java Secure Socket Extension Does Not Correctly Process SSL/TLS Handshake Requests Resulting in a Denial of Service (DoS) Condition

The Java Secure Socket Extension JSSE in Sun JDK and JRE 6 Update 1 and earlier, JDK and JRE 5.0 Updates 7 through 11, and SDK and JRE 1.4.211 through 1.4.214, when using JSSE for SSL/TLS support, allows remote attackers to cause a denial of service CPU consumption via certain SSL/TLS handshake...