Bleichenbacher Attack on TLS Affecting Cisco Products: December 2017

On December 12, 2017, a research paper with the title Return of Bleichenbacher's Oracle Threat was made publicly available. This paper describes how some Transport Layer Security TLS stacks are vulnerable to variations of the classic Bleichenbacher attack on RSA key exchange. Multiple...

ROBOT Attack: 19-Year-Old Bleichenbacher Attack On Encrypted Web Reintroduced

A 19-year-old vulnerability has been re-discovered in the RSA implementation from at least 8 different vendors—including F5, Citrix, and Cisco—that can give man-in-the-middle attackers access to encrypted messages. Dubbed ROBOT Return of Bleichenbacher's Oracle Attack, the attack allows an attack...

CVE-2017-1000385

The Erlang otp TLS server answers with different TLS alerts to different error types in the RSA PKCS 1 1.5 padding. This allows an attacker to decrypt content or sign messages with the server's private key this is a variation of the Bleichenbacher attack...

TLS implementations may disclose side channel information via discrepancies between valid and invalid PKCS#1 padding

Overview TLS implementations may disclose side channel information via discrepancies between valid and invalid PKCS1 padding, and may therefore be vulnerable to Bleichenbacher-style attacks. This attack is known as a "ROBOT attack". Description CWE-203: Information Exposure Through Discrepancy...

The Bouncy Castle Crypto APIs: CVE-2017-13098 ("ROBOT")

The Legion of the Bouncy Castle reports: Release: 1.59 CVE-2017-13098 "ROBOT", a Bleichenbacher oracle in TLS when RSA key exchange is negotiated. This potentially affected BCJSSE servers and any other TLS servers configured to use JCE for the underlying crypto - note the two TLS implementations...

CryKeX - Linux Memory Cryptographic Keys Extractor

CryKeX - Linux Memory Cryptographic Keys Extractor Properties: Cross-platform Minimalism Simplicity Interactivity Compatibility/Portability Application Independable Process Wrapping Process Injection Dependencies: Unix - should work on any Unix-based OS BASH - the whole script root privileges...

BSA-2018-528

Security Advisory ID : BSA-2018-528 Component : OpenSSL Revision : 1.0: Final There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this...

[SECURITY] [DSA 4057-1] erlang security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4057-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff December 08, 2017 https://www.debian.org/security/faq -...

Debian DSA-4057-1 : erlang - security update (ROBOT)

It was discovered that the TLS server in Erlang is vulnerable to an adaptive chosen ciphertext attack against RSA keys. %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from Debian Security Advisory DSA-4057. The text itsel...

FreeBSD : OpenSSL -- multiple vulnerabilities (3bb451fc-db64-11e7-ac58-b499baebfeaf)

The OpenSSL project reports : - Read/write after SSL object in error state CVE-2017-3737 OpenSSL 1.0.2 starting from version 1.0.2b introduced an 'error state' mechanism. The intent was that if a fatal error occurred during a handshake then OpenSSL would move into the error state and would...

Updated tor packages fix security vulnerability

When checking for replays in the INTRODUCE1 cell data for a legacy onion service, Tor didn't correctly detect replays in the RSA- encrypted part of the cell. It was previously checking for replays on the entire cell, but those can be circumvented due to the malleability of Tor's legacy hybrid...

CVE-2017-3738

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attack...

Buffer overflow

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attack...

DEBIAN-CVE-2017-3738

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attack...

CVE-2017-3738

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attack...

CVE-2017-3738

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attack...

CVE-2017-3738

CVE-2017-3738 is an overflow bug in the AVX2 Montgomery multiplication used for 1024-bit moduli in OpenSSL. The issue affects x86_64 builds with AVX2 (not ADX) and can, in very unlikely cases, enable private-key recovery on affected architectures. OpenSSL 1.0.2n fixes the flaw; OpenSSL 1.1.0 is n...

CVE-2017-3738

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attack...

Debian: Security Advisory (DSA-4057-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2017 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

FreeBSD : FreeBSD -- OpenSSL multiple vulnerabilities (9442a811-dab3-11e7-b5af-a4badb2f4699)

If an X.509 certificate has a malformed IPAddressFamily extension, OpenSSL could do a one-byte buffer overread. CVE-2017-3735 There is a carry propagating bug in the x8664 Montgomery squaring procedure. This only affects processors that support the BMI1, BMI2 and ADX extensions like Intel Broadwe...