Gratipay: Certificate signed using SHA-1

Hello, I detected a certificate signed using SHA-1. SHA-1 is a hash algorithm used in digital signatures. It is currently considered deprecated due to the increasing feasibility in breaking it. Impact: Certificates can be forged by capable adversaries. Forged certificates can be used in MITM...

SSL Certificate Signed Using Weak Hashing Algorithm (Known CA)

The remote service uses a known CA certificate in the SSL certificate chain that has been signed using a cryptographically weak hashing algorithm e.g., MD2, MD4, MD5, or SHA1. These signature algorithms are known to be vulnerable to collision attacks CVE-2004-2761, for example. An attacker can...

SHA-1 ウェブサーバー証明書は警告！ウェブサイト管理者は影響の最終確認を

こんにちは、村木ゆりかです。 以前よりマイクロソフト セキュリティ アドバイザリ 2880823、そして、このブログでもご案内しているとおり、証明書に利用されているハッシュ アルゴリズム SHA-1 の安全性の低下に伴い、利用廃止が進められています。 マイクロソフトでは、2017 年 2 月 14 日 米国時間 2017 年中旬 2017 日 5 月 9 日 米国時間 より、SHA-1 の TLS サーバー証明書を利用するウェブサイトを、Microsoft Edge および Internet Explorer 11...

Microsoft Cutting Off SHA-1 Support in February for Edge, IE 11

Microsoft confirmed that Feb. 14, 2017 is the cutoff date for SHA-1 support in its Microsoft Edge and Internet Explorer 11 browsers. After that date, neither browser will immediately load sites still running SHA-1 certificates and users will be shown an invalid certificate warning. Users will als...

Google Removing SHA-1 Support in Chrome 56

The home stretch for SHA-1 deprecation is in full effect with Google on Wednesday announcing its final deprecation deadlines for the Chrome browser, and a cryptographic services provider warning that there’s still a long way to go to get sites off SHA-1 certificates. Google said it will remove it...

Planning for the End of 2016: A Leap Second and the End-of-Support for SHA-1 TLS Certificates

A leap second and the final end of browser support for SHA-1 TLS certificates will happen and can potentially break software systems and applications...

Google to Distrust WoSign, StartCom Certs in 2017

Google announced Monday that when it ships Chrome 56 in January 2017 the browser will distrust certificates issued by Chinese certificate authoritiesWoSign and StartCom that have made headlines over the past month. The move was somewhat expected after Mozilla announced last week the company would...

CVE-2005-4900

SHA-1 is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of SHA-1 in TLS 1.2. NOTE: this CVE exists to provide a common identifier for referencing this SHA-1 issue; the existence of an identifier is...

CVE-2005-4900

The CVE-2005-4900 entry notes that SHA-1 is not collision resistant, enabling context-dependent spoofing attacks, with examples related to TLS 1.2. The provided materials do not specify affected products, versions, root causes within a specific product, or remediations. The entry serves as a gene...

CVE-2005-4900

SHA-1 is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of SHA-1 in TLS 1.2. NOTE: this CVE exists to provide a common identifier for referencing this SHA-1 issue; the existence of an identifier is...

CVE-2005-4900: Inadequate Encryption Strength

SHA-1 is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of SHA-1 in TLS 1.2. NOTE: this CVE exists to provide a common identifier for referencing this SHA-1 issue; the existence of an identifier is...

Apple To Block WoSign Intermediate Certificates

Apple weighed in on the ongoing WoSign fiasco over the weekend, saying it would soon distrust certificates issued by the Chinese Certificate Authority’s Free SSL Certificate G2 intermediate CA on macOS. Apple’s decision comes several days after Mozilla accused the CA of backdating SHA-1...

Mozilla Wants to Drop WoSign as Trusted CA

Mozilla has accused a Chinese Certificate Authority of back-dating SHA-1 certificates to get around restrictions barring deprecated certs from being trusted, and is ready to ban the CA for one year. The back-dating is just one of many violations derived after a lengthy investigation of WoSign and...

BlackHat issues resolved: Windows programs digital signature verification“vulnerability”-vulnerability warning-the black bar safety net

In this year's black hat conference, foreign a security researcher shows how by the Windows digital signature bypass for malicious code detection. Download the General Assembly of the presentation of the ppt probably looked at it, the report is divided into two parts, the first part shows the...

MS16-097: Description of the security update for Office 2010: August 9, 2016

MS16-097: Description of the security update for Office 2010: August 9, 2016 Summary This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user either visits a specially crafted website or opens a specially crafted document. To learn more...

Internet Explorer help

None None...

MS16-070: Description of the security update for Visio Viewer 2007: June 14, 2016

MS16-070: Description of the security update for Visio Viewer 2007: June 14, 2016 Summary This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see...

Millions of Stolen MySpace, Tumblr Credentials Being Sold Online

Hackers are peddling roughly 427 million passwords belonging to users of MySpace, a social network that in its heyday was one of the most visited sites on the internet. The same service that claimed to have information on 164 million LinkedIn users earlier this month is now boasting to have...

TLS Certificate Signed Using Weak Hashing Algorithm - SHA-1

Binary data 7200.pasl...

Google Set to Kill SSLv3, RC4 in SMTP, Gmail in June

Google clarified this week exactly when it plans to disable support for the RC4 stream cipher and the SSLv3 protocol on the company’s SMTP servers and Gmail’s web servers. It turns out the end will come sooner than later; the company announced it will begin to disable both a month from now, on Ju...