OpenSSL Cross-Protocol Attack Vulnerability

OpenSSL is a general-purpose open source cryptographic library that implements Secure Sockets Layer and Secure Transport Layer protocols and can support a variety of cryptographic algorithms, including symmetric ciphers, hashing algorithms, secure hashing algorithms, and so on. Cross-protocol...

CVE-2016-0800

The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to send a ServerVerify message before establishing that a client possesses certain plaintext RSA data, which makes it easier for remote attackers to decrypt TLS ciphertext data by...

ownCloud: DROWN Attack

Hi, I want to report a drown attack in .owncloud.com. A cross-protocol attack was discovered that could lead to decryption of TLS sessions by using a server supporting SSLv2 and EXPORT cipher suites as a Bleichenbacher RSA padding oracle. Note that traffic between clients and non-vulnerable serve...

OpenSSL: Side channel attack on modular exponentiation

A side-channel attack was found that makes use of cache-bank conflicts on the Intel Sandy-Bridge microarchitecture. An attacker who has the ability to control code in a thread running on the same hyper-threaded core as the victim's thread that is performing decryption, could use this flaw to...

SSL/TLS: Cross-protocol attack on TLS using SSLv2 (DROWN)

A padding oracle flaw was found in the Secure Sockets Layer version 2.0 SSLv2 protocol. An attacker could potentially use this flaw to decrypt RSA-encrypted cipher text from a connection using a newer SSL/TLS protocol version, allowing them to decrypt such connections. This cross-protocol attack ...

openssl: Divide-and-conquer session key recovery in SSLv2

It was discovered that the SSLv2 servers using OpenSSL accepted SSLv2 connection handshakes that indicated non-zero clear key length for non-export cipher suites. An attacker could use this flaw to decrypt recorded SSLv2 sessions with the server by using it as a decryption oracle...

SSL/TLS: Cross-protocol attack on TLS using SSLv2 (DROWN)

A padding oracle flaw was found in the Secure Sockets Layer version 2.0 SSLv2 protocol. An attacker could potentially use this flaw to decrypt RSA-encrypted cipher text from a connection using a newer SSL/TLS protocol version, allowing them to decrypt such connections. This cross-protocol attack ...

openssl: Divide-and-conquer session key recovery in SSLv2

It was discovered that the SSLv2 servers using OpenSSL accepted SSLv2 connection handshakes that indicated non-zero clear key length for non-export cipher suites. An attacker could use this flaw to decrypt recorded SSLv2 sessions with the server by using it as a decryption oracle...

SSL/TLS: Cross-protocol attack on TLS using SSLv2 (DROWN)

A padding oracle flaw was found in the Secure Sockets Layer version 2.0 SSLv2 protocol. An attacker could potentially use this flaw to decrypt RSA-encrypted cipher text from a connection using a newer SSL/TLS protocol version, allowing them to decrypt such connections. This cross-protocol attack ...

openssl: Divide-and-conquer session key recovery in SSLv2

It was discovered that the SSLv2 servers using OpenSSL accepted SSLv2 connection handshakes that indicated non-zero clear key length for non-export cipher suites. An attacker could use this flaw to decrypt recorded SSLv2 sessions with the server by using it as a decryption oracle...

DROWN Attack — More than 11 Million OpenSSL HTTPS Websites at Risk

A new deadly security vulnerability has been discovered in OpenSSL that affects more than 11 Million modern websites and e-mail services protected by an ancient, long deprecated transport layer security protocol, Secure Sockets Layer SSLv2. Dubbed DROWN, the highly critical security hole in OpenS...

SSLv2 DROWN Attack

Network traffic encrypted using an RSA-based SSL certificate may be decrypted if enough SSLv2 handshake data can be collected. Exploitation of this vulnerability—referred to as DROWN in public reporting—may allow a remote attacker to decrypt individual messages from a server supporting SSLv2...

FreeBSD : wireshark -- multiple vulnerabilities (42c2c422-df55-11e5-b2bd-002590263bf5)

Wireshark development team reports : The following vulnerabilities have been fixed : - wnpa-sec-2015-31 NBAP dissector crashes. Bug 11602, Bug 11835, Bug 11841 - wnpa-sec-2015-37 NLM dissector crash. - wnpa-sec-2015-39 BER dissector crash. - wnpa-sec-2015-40 Zlib decompression crash. Bug 11548 -...

SSL DROWN Attack Vulnerability (Decrypting RSA with Obsolete and Weakened eNcryption)

The remote host supports SSLv2 and therefore may be affected by a vulnerability that allows a cross-protocol Bleichenbacher padding oracle attack known as DROWN Decrypting RSA with Obsolete and Weakened eNcryption. This vulnerability exists due to a flaw in the Secure Sockets Layer Version 2 SSLv...

CVE-2016-0800

The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to send a ServerVerify message before establishing that a client possesses certain plaintext RSA data, which makes it easier for remote attackers to decrypt TLS ciphertext data by...

SSLv2 Cross-Protocol Session Decryption Vulnerability (DROWN)

Binary data 9127.prm...

CTB-Locker Ransomware Spreading Rapidly, Infects Thousands of Web Servers

Ransomware has steadily evolved over the past decade, moving from isolated attacks on individual computers to wider campaigns that disrupt entire services. Families such as Cryptowall and Locky showed how quickly file-encrypting malware could spread across Windows systems. Researchers are now...

CTB-Locker/Critroni Finds New Legs Targeting Websites

After months of relative dormancy, ransomware CTB-Locker or Critroni is back and this time finding new life targeting websites. Researchers are calling this variant “CTB-Locker for Websites” because it targets websites, encrypts their content, and demands a 0.4 bitcoin $425 ransom for access to t...

DSA-3488-1 libssh - security update

Bulletin has no description...

CVE-2016-1321

Cisco Universal Small Cell devices with firmware R2.12 through R3.5 contain an image-decryption key in flash memory, which allows remote attackers to bypass a certain certificate-validation feature and obtain sensitive firmware-image and IP address data via a request to an unspecified Cisco serve...