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Widely-Used PuTTY SSH Client Found Vulnerable to Key Recovery Attack

Widely-Used PuTTY SSH Client Found Vulnerable to Key Recovery Attack
Apr 16, 2024 Encryption / Network Security
The maintainers of the  PuTTY Secure Shell (SSH) and Telnet client  are alerting users of a critical vulnerability impacting versions from 0.68 through 0.80 that could be exploited to achieve full recovery of NIST P-521 (ecdsa-sha2-nistp521) private keys. The flaw has been assigned the CVE identifier  CVE-2024-31497 , with the discovery credited to researchers Fabian Bäumer and Marcus Brinkmann from the Ruhr University Bochum. "The effect of the vulnerability is to compromise the private key," the PuTTY project  said  in an advisory. "An attacker in possession of a few dozen signed messages and the public key has enough information to recover the private key, and then forge signatures as if they were from you, allowing them to (for instance) log in to any servers you use that key for." However, in order to obtain the signatures, an attacker will have to compromise the server for which the key is used to authenticate to. In a message posted on the Open Source

Pro-Iranian Hacker Group Targeting Albania with No-Justice Wiper Malware

Pro-Iranian Hacker Group Targeting Albania with No-Justice Wiper Malware
Jan 06, 2024 Malware / Cyber Attack
The  recent wave of cyber attacks  targeting Albanian organizations involved the use of a wiper called  No-Justice . The  findings  come from cybersecurity company ClearSky, which said the Windows-based malware "crashes the operating system in a way that it cannot be rebooted." The intrusions have been attributed to an Iranian "psychological operation group" known as Homeland Justice, which has been active since July 2022, specifically orchestrating destructive attacks against Albania. On December 24, 2023, the adversary resurfaced after a hiatus, stating it's "back to destroy supporters of terrorists," describing its latest campaign as #DestroyDurresMilitaryCamp. The Albanian city of Durrës  currently hosts  the dissident group People's Mojahedin Organization of Iran (MEK). Targets of the attack included ONE Albania, Eagle Mobile Albania, Air Albania, and the Albanian parliament. Two of the primary tools deployed during the campaign include an executa

Code Keepers: Mastering Non-Human Identity Management

Code Keepers: Mastering Non-Human Identity Management
Apr 12, 2024DevSecOps / Identity Management
Identities now transcend human boundaries. Within each line of code and every API call lies a non-human identity. These entities act as programmatic access keys, enabling authentication and facilitating interactions among systems and services, which are essential for every API call, database query, or storage account access. As we depend on multi-factor authentication and passwords to safeguard human identities, a pressing question arises: How do we guarantee the security and integrity of these non-human counterparts? How do we authenticate, authorize, and regulate access for entities devoid of life but crucial for the functioning of critical systems? Let's break it down. The challenge Imagine a cloud-native application as a bustling metropolis of tiny neighborhoods known as microservices, all neatly packed into containers. These microservices function akin to diligent worker bees, each diligently performing its designated task, be it processing data, verifying credentials, or

North Korean Hackers Spreading Trojanized Versions of PuTTY Client Application

North Korean Hackers Spreading Trojanized Versions of PuTTY Client Application
Sep 16, 2022
A threat with a North Korea nexus has been found leveraging a "novel spear phish methodology" that involves making use of trojanized versions of the PuTTY SSH and Telnet client. Google-owned threat intelligence firm Mandiant attributed the new campaign to an emerging threat cluster it tracks under the name  UNC4034 . "UNC4034 established communication with the victim over WhatsApp and lured them to download a malicious ISO package regarding a fake job offering that led to the deployment of the AIRDRY.V2 backdoor through a trojanized instance of the PuTTY utility," Mandiant researchers  said . The utilization of fabricated job lures as a pathway for malware distribution is an oft-used tactic by North Korean state-sponsored actors, including the Lazarus Group, as part of an enduring campaign called  Operation Dream Job . The entry point of the attack is an ISO file that masquerades as an Amazon Assessment as part of a potential job opportunity at the tech giant.

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PuTTY Releases Important Software Update to Patch 8 High-Severity Flaws

PuTTY Releases Important Software Update to Patch 8 High-Severity Flaws
Mar 20, 2019
The popular SSH client program PuTTY has released the latest version of its software that includes security patches for 8 high-severity security vulnerabilities. PuTTY is one of the most popular and widely used open-source client-side programs that allows users to remotely access computers over SSH, Telnet, and Rlogin network protocols. Almost 20 months after releasing the last version of its software, the developers of PuTTY earlier this week released the latest version 0.71 for Windows and Unix operating systems. According to an advisory available on its website, all previous versions of the PuTTY software have been found vulnerable to multiple security vulnerabilities that could allow a malicious server or a compromised server to hijack client's system in different ways. Here below I have listed all 8 vulnerabilities with brief information that PuTTY 0.71 has patched: 1) Authentication Prompt Spoofing — Since PuTTY doesn't have a way to indicate whether a piec
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