The remote Debian 11 / 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5586 advisory.

  - sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows     privilege escalation because supplemental groups are not initialized as expected. Helper programs for     AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group     memberships of the sshd process, if the configuration specifies running the command as a different user.
    (CVE-2021-41617)

  - ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination     constraints. The earliest affected version is 8.9. (CVE-2023-28531)

  - The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other     products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the     extension negotiation message), and a client and server may consequently end up with a connection for     which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because     the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and     mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of     ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and     (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API     before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80,     AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0,     Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15,     SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH     through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang     XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd     through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and     LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3,     Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server     before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the     mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh     crate before 0.40.2 for Rust. (CVE-2023-48795)

  - In ssh-agent in OpenSSH before 9.6, certain destination constraints can be incompletely applied. When     destination constraints are specified during addition of PKCS#11-hosted private keys, these constraints     are only applied to the first key, even if a PKCS#11 token returns multiple keys. (CVE-2023-51384)

  - In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell     metacharacters, and this name is referenced by an expansion token in certain situations. For example, an     untrusted Git repository can have a submodule with shell metacharacters in a user name or host name.
    (CVE-2023-51385)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

Debian DSA-5586-1 : openssh - security update

critical Nessus Plugin ID 187213

Version 1.5

Version 1.4

Version 1.4

Version 1.3

Version 1.3

Version 1.2

Version 1.1

Version 1.0

Version 1.5 Jan 4, 2024, 3:23 PM CVSSv3 score source (changed from "CVE-2023-51385" to "CVE-2023-28531") Plugin Feed: 202401041523
Version 1.4 Jan 4, 2024, 1:31 PM CVSSv3 score source (changed from "CVE-2023-51385" to "CVE-2023-28531") Plugin Feed: 202401041331
Version 1.4 Dec 25, 2023, 6:31 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202312250631
Version 1.3 Dec 24, 2023, 10:38 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202312242238
Version 1.3 Dec 25, 2023, 4:35 AM Plugin metadata Detection (updated detection logic) Plugin Feed: 202312250435
Version 1.2 Dec 24, 2023, 4:31 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202312241631
Version 1.1 Dec 24, 2023, 12:19 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202312241219
Version 1.0 Dec 22, 2023, 5:21 PM New Plugin Feed: 202312221721