Vulnerability fixed in Putty

Putty has fixed a vulnerability in Putty Client. The vulnerability in Putty is in how the ECDSA nonce is created when using NIST P-521. This makes possible for a malicious person to guess the nonce and use using the signed text to retrieve the private key. Putty is also used in the following...

FreeBSD : PuTTY and embedders (f.i., filezilla) -- biased RNG with NIST P521/ecdsa-sha2-nistp521 signatures permits recovering private key (080936ba-fbb7-11ee-abc8-6960f2492b1d)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 080936ba-fbb7-11ee-abc8-6960f2492b1d advisory. - In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a...

SUSE CVE-2024-31497

In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a user's NIST P-521 secret key via a quick attack in approximately 60 signatures. This is especially important in a scenario where an adversary is able to read messages signed by PuTTY or Pageant...

DEBIAN-CVE-2024-31497

In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a user's NIST P-521 secret key via a quick attack in approximately 60 signatures. This is especially important in a scenario where an adversary is able to read messages signed by PuTTY or Pageant...

CVE-2024-31497

In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a user's NIST P-521 secret key via a quick attack in approximately 60 signatures. This is especially important in a scenario where an adversary is able to read messages signed by PuTTY or Pageant...

CVE-2024-31497

In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a user's NIST P-521 secret key via a quick attack in approximately 60 signatures. This is especially important in a scenario where an adversary is able to read messages signed by PuTTY or Pageant...

CVE-2024-31497

In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a user's NIST P-521 secret key via a quick attack in approximately 60 signatures. This is especially important in a scenario where an adversary is able to read messages signed by PuTTY or Pageant...

CVE-2024-31497

PuTTY versions 0.68–0.80 (before 0.81) are vulnerable to a biased ECDSA nonce issue that can enable an attacker to recover a user’s NIST P-521 private key after observing signatures. The CVE is discussed in multiple advisories and vendor notices (Debian LTS advisory DLA-3839-1, Fedora package upd...

CVE-2024-31497: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a user's NIST P-521 secret key via a quick attack in approximately 60 signatures. This is especially important in a scenario where an adversary is able to read messages signed by PuTTY or Pageant...

KLA65600 OSI vulnerability in FileZilla

Information disclosure vulnerability was found in FileZilla. Malicious users can exploit this vulnerability to obtain sensitive information. Original advisories oss-security – CVE-2024-31497: Secret Key Recovery of NIST P-521 Private Keys Through Biased ECDSA Nonces in PuTTY Client Exploitation...

CVE-2024-31497

In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a user's NIST P-521 secret key via a quick attack in approximately 60 signatures. This is especially important in a scenario where an adversary is able to read messages signed by PuTTY or Pageant...

CVE-2024-31497

In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a user's NIST P-521 secret key via a quick attack in approximately 60 signatures. This is especially important in a scenario where an adversary is able to read messages signed by PuTTY or Pageant...

CVE-2024-31497

In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a user's NIST P-521 secret key via a quick attack in approximately 60 signatures. This is especially important in a scenario where an adversary is able to read messages signed by PuTTY or Pageant...

Active Nitrogen campaign delivered via malicious ads for PuTTY, FileZilla

In the past couple of weeks, we have observed an ongoing campaign targeting system administrators with fraudulent ads for popular system utilities. The malicious ads are displayed as sponsored results on Googles search engine page and localized to North America. Victims are tricked into downloadi...

PuTTY and embedders (f.i., filezilla) -- biased RNG with NIST P521/ecdsa-sha2-nistp521 signatures permits recovering private key

Simon Tatham reports: ECDSA signatures using 521-bit keys the NIST P521 curve, otherwise known as ecdsa-sha2-nistp521 were generated with biased random numbers. This permits an attacker in possession of a few dozen signatures to RECOVER THE PRIVATE KEY. Any 521-bit ECDSA private key that PuTTY or...

EulerOS Virtualization 2.9.1 : openssh (EulerOS-SA-2024-1460)

According to the versions of the openssh packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote...

EulerOS Virtualization 2.9.0 : libssh2 (EulerOS-SA-2024-1470)

According to the versions of the libssh2 package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attacke...

Huawei EulerOS: Security Advisory for proftpd (EulerOS-SA-2024-1345)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2024 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...

EulerOS 2.0 SP10 : libssh2 (EulerOS-SA-2024-1317)

According to the versions of the libssh2 package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass...

EulerOS 2.0 SP11 : libssh2 (EulerOS-SA-2024-1217)

According to the versions of the libssh2 package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass...