Researchers Break Petya Ransomware Encryption

Researchers have been combing through code related to the Petya ransomware long enough they’ve been able to cobble together a decryption tool that should allow most victims to generate keys in less than 10 seconds. A Twitter user who goes by the handle @leostone came up with a genetic algorithm o...

Encryption Bill: Bad for Privacy, Security and Business

A bill that would force companies to decrypt messages and unlock devices if ordered to do so by government court order, surfaced Friday and is rattling security and privacy advocates and IT business leaders. They contend the bill is misguided and will have a detrimental effect on civil liberties...

[SECURITY] Fedora 22 Update: python-rsa-3.4.1-1.fc22

Python-RSA is a pure-Python RSA implementation. It supports encryption and decryption, signing and verifying signatures, and key generation according to PKCS1 version 1.5. It can be used as a Python library as well as on the command-line...

[SECURITY] Fedora 23 Update: python-rsa-3.4.1-1.fc23

Python-RSA is a pure-Python RSA implementation. It supports encryption and decryption, signing and verifying signatures, and key generation according to PKCS1 version 1.5. It can be used as a Python library as well as on the command-line...

Important: openssl098e

Issue Overview: A denial of service flaw was found in the way OpenSSL handled SSLv2 handshake messages. A remote attacker could use this flaw to cause a TLS/SSL server using OpenSSL to exit on a failed assertion if it had both the SSLv2 protocol and EXPORT-grade cipher suites enabled. CVE-2015-02...

Ransomware attacks on Hospitals put Patients at Risk

Just last week, the Federal Bureau of Investigation FBI issued an urgent "Flash" message to the businesses and organisations about the threat of Samsam Ransomware, but the ransomware has already wreaked havoc on some critical infrastructure. MedStar, a non-profit group that runs 10 hospitals in t...

Petya Ransomware Master File Table Encryption

First ransomware locked your desktop. Then it encrypted your files. Not long after, webservers, shared drives and backups were targeted. Now? Introducing Petya, ransomware that targets the Master Boot Record. Spotted in email campaigns sent to human resources offices in German companies, the...

The vulnerability of the OpenSSL library, which allows a hacker to decrypt the transmitted data

The vulnerability of the OpenSSL library lies in the fact that the SSLv2 protocol requires the server to send a message called ServerVerify before establishing a connection. As a result, the client possesses a portion of the RSA public key. Exploiting this vulnerability allows a remote attacker t...

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 ...

Gratipay: Hijacking user session by forcing the use of invalid HTTPs Certificate on images.gratipay.com

I found that the domain images.gratipay.com is just a reverse proxy for gratipay.com and HTTPS works throughtout the site flawlessly except in one case, that it when we try to open user's profile: POC: https://images.gratipay.com/asdlfz/ Https Warning Page: http://i.imgur.com/XHsXJEvr.png?1 Risks...

PT-2021-3311

Name of the Vulnerable Software and Affected Versions 802.11 standard affected versions not specified Description The issue concerns the 802.11 standard that underpins Wi-Fi Protected Access WPA, WPA2, and WPA3 and Wired Equivalent Privacy WEP. It does not require that all fragments of a frame ar...

iOS song of ice and fire fan outside the post - App Hook the Q & A and iOS 9 bash shell-vulnerability warning-the black bar safety net

In the previous Chapter we talked about in a non-jailbreak iOS on the App Hook. Using this technique, you can be in a non-jailbreak iOS on the system to achieve a variety of hook features, e.g., micro-channel auto-grab a red envelope, the automatic chat robot, game plug-in, etc. But because of...

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 ...

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 ...

CVE-2016-1360

Cisco Prime LAN Management Solution LMS through 4.2.5 uses the same database decryption key across different customers' installations, which allows local users to obtain cleartext data by leveraging console connectivity, aka Bug ID CSCuw85390...

CVE-2016-1360

Cisco Prime LAN Management Solution LMS through 4.2.5 uses the same database decryption key across different customers' installations, which allows local users to obtain cleartext data by leveraging console connectivity, aka Bug ID CSCuw85390...

Design/Logic Flaw

Cisco Prime LAN Management Solution LMS through 4.2.5 uses the same database decryption key across different customers' installations, which allows local users to obtain cleartext data by leveraging console connectivity, aka Bug ID CSCuw85390...

CVE-2016-1360

Cisco Prime LAN Management Solution LMS through 4.2.5 uses the same database decryption key across different customers' installations, which allows local users to obtain cleartext data by leveraging console connectivity, aka Bug ID CSCuw85390...

Cisco Prime LAN Management Solution Default Decryption Key Vulnerability

A vulnerability in Cisco Prime LAN Management Solution LMS could allow an authenticated, local attacker to decrypt and access data fields in LMS databases that are used to manage devices in Cisco networks. The vulnerability is due to the presence of a default database decryption key that is share...

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...