openssl security and bug fix update

1.1.1c-15 - add selftest of the RANDDRBG implementation 1.1.1c-14 - fix incorrect error return value from FIPSselftestdsa - S390x: properly restore SIGILL signal handler 1.1.1c-12 - additional fix for the edk2 build 1.1.1c-9 - disallow use of SHA-1 signatures in TLS in FIPS mode 1.1.1c-8 - fix...

Security feature bypass

A Security Feature Bypass vulnerability exists in the MSR JavaScript Cryptography Library that is caused by multiple bugs in the library’s Elliptic Curve Cryptography ECC implementation.An attacker could potentially abuse these bugs to learn information about a server’s private ECC key a key...

CVE-2020-1026

A Security Feature Bypass vulnerability exists in the MSR JavaScript Cryptography Library that is caused by multiple bugs in the library’s Elliptic Curve Cryptography ECC implementation.An attacker could potentially abuse these bugs to learn information about a server’s private ECC key a key...

CVE-2020-1026

The CVE-2020-1026 issue affects the MSR JavaScript Cryptography Library’s ECC implementation. It results from multiple bugs in ECC code, enabling an attacker to potentially leak a server’s private ECC key (key leakage attack) or craft an invalid ECDSA signature that passes as valid. The vulnerabi...

wolfSSL encryption issue vulnerability (CNVD-2020-22973)

wolfSSL formerly known as CyaSSL is the United States wolfSSL company for embedded systems developers to use a small, portable embedded SSL programming library. A security vulnerability exists in the wceccmulmodex of the ecc.c file in wolfSSL version 4.3.0. An attacker can exploit this...

User Enumeration

Overview Affected versions of this package are vulnerable to User Enumeration wolfSSL 4.3.0 has mulmod code in wceccmulmodex in ecc.c that does not properly resist timing side-channel attacks. Remediation Upgrade wolfssl to version 5.0.0 or higher. References - GitHub Gist - GitHub PR...

CVE-2020-11713

wolfSSL 4.3.0 has mulmod code in wceccmulmodex in ecc.c that does not properly resist timing side-channel attacks...

Microsoft Windows - CryptoAPI (Crypt32.dll) Elliptic Curve Cryptography (ECC) Spoof Code-Signing

EDB Note Download: https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/47933.zip require 'openssl' raw = File.read "ca.crt" cacert = OpenSSL::X509::Certificate.newraw Parse public key from CA cakey = cacert.publickey if !cakey.instanceof? OpenSSL::PKey::EC then puts...

Microsoft Windows CryptoAPI Spoofing (CVE-2020-0601)

A spoofing vulnerability exists in the way Windows CryptoAPI validates Elliptic Curve Cryptography ECC certificates. An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear as if the file was from a trusted source...

Microsoft Windows - CryptoAPI (Crypt32.dll) Elliptic Curve Cryptography (ECC) Spoof Code-Signing Certificate

EDB Note Download: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/47933.zip require 'openssl' raw = File.read "ca.crt" cacert = OpenSSL::X509::Certificate.newraw Parse public key from CA cakey = cacert.publickey if !cakey.instanceof? OpenSSL::PKey::EC then puts "...

Microsoft Windows - CryptoAPI (Crypt32.dll) Elliptic Curve Cryptography (ECC) Spoof Code-Signing Certificate

Microsoft Windows - CryptoAPI Crypt32.dll Elliptic Curve Cryptography ECC Spoof Code-Signing Certificate EDB Note Download: https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/47933.zip require 'openssl' raw = File.read "ca.crt" cacert =...

CVE-2020-0601

A spoofing vulnerability exists in the way Windows CryptoAPI Crypt32.dll validates Elliptic Curve Cryptography ECC certificates.An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear the file was from a trusted,...

Spoofing

A spoofing vulnerability exists in the way Windows CryptoAPI Crypt32.dll validates Elliptic Curve Cryptography ECC certificates.An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear the file was from a trusted,...

CVE-2020-0601

The CVE-2020-0601 issue affects Windows CryptoAPI (Crypt32.dll) and its ECC certificate validation, enabling a spoofing attack where a forged code-signing certificate could make malware appear trusted. Affected platforms include Windows 10 and Windows Server 2016/2019, with the vulnerability tied...

CVE-2020-0601

A spoofing vulnerability exists in the way Windows CryptoAPI Crypt32.dll validates Elliptic Curve Cryptography ECC certificates.An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear the file was from a trusted,...

CVE-2020-0601

A spoofing vulnerability exists in the way Windows CryptoAPI Crypt32.dll validates Elliptic Curve Cryptography ECC certificates.An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear the file was from a trusted,...

Update Windows 10 Immediately to Patch a Flaw Discovered by the NSA

After Adobe today releases its first Patch Tuesday updates for 2020, Microsoft has now also published its January security advisories warning billions of users of 49 new vulnerabilities in its various products. What's so special about the latest Patch Tuesday is that one of the updates fixes a...

Windows CryptoAPI Spoofing Vulnerability

A spoofing vulnerability exists in the way Windows CryptoAPI Crypt32.dll validates Elliptic Curve Cryptography ECC certificates. An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear the file was from a trusted,...

KLA11639 Multiple vulnerabilities in Microsoft Windows

Multiple vulnerabilities were found in Microsoft Windows. Malicious users can exploit these vulnerabilities to execute arbitrary code, obtain sensitive information, gain privileges, bypass security restrictions, spoof user interface, cause denial of service. Below is a complete list of...

Microsoft Windows CryptoAPI fails to properly validate ECC certificate chains

Overview The Microsoft Windows CryptoAPI fails to properly validate certificates that use Elliptic Curve Cryptography ECC, which may allow an attacker to spoof the validity of certificate chains. Description The Microsoft Windows CryptoAPI, which is provided by Crypt32.dll, fails to validate ECC...