安全公告/【CVE-2023-48795】

基本信息

漏洞名称:OpenSSH 安全漏洞(CVE-2023-48795)
受影响操作系统:红旗Asianux服务器操作系统 V8
危险等级:中危
影响源码包:python-paramiko
CVSS评分:5.9
发现日期:2024/9/19
修复日期:2024/10/23
修复版本:

漏洞描述

带有某些 OpenSSH 扩展的 SSH 传输协议（在 OpenSSH 9.6 之前的版本和其他产品中发现）允许远程攻击者绕过完整性检查，从而省略某些数据包（从扩展协商消息中），因此客户端和服务器可能最终建立一些安全功能已降级或禁用的连接，也称为 Terrapin 攻击。发生这种情况的原因是，这些扩展实现的 SSH 二进制数据包协议 (BPP) 错误处理了握手阶段并错误处理了序列号的使用。例如，有一种针对 SSH 使用 ChaCha20-Poly1305（以及使用 Encrypt-then-MAC 的 CBC）的有效攻击。绕过发生在 chacha20-poly1305@openssh.com 和（如果使用 CBC） -etm@openssh.com MAC 算法中。这也会影响 3.1.0-SNAPSHOT 之前的 Maverick Synergy Java SSH API、2022.83 之前的 Dropbear、Erlang/OTP 中 5.1.1 之前的 Ssh、0.80 之前的 PuTTY、2.14.2 之前的 AsyncSSH、0.17.0 之前的 golang.org/x/crypto 、0.10.6 之前的 libssh、1.11.0 之前的 libssh2、3.4.6 之前的 Thorn Tech SFTP Gateway、5.1 之前的 Tera Term、3.4.0 之前的 Paramiko、0.2.15 之前的 jsch、2.5.6 之前的 SFTPGo、23.09.1 之前的 Netgate pfSense Plus、2.7.2 之前的 Netgate pfSense CE、18.2.0 之前的 HPN-SSH、1.3.8b 之前的 ProFTPD（和 1.3.9rc2 之前）和 ORYX CycloneSSH 2.3.4 之前、NetSarang XShell 7 Build 0144 之前、CrushFTP 10.6.0 之前、ConnectBot SSH 库 2.2.22 之前、Apache MINA sshd 至 2.11.0、sshj 至 0.37.0、TinySSH 至 20230101、trilead-ssh2 6401、LANCOM LCOS 和 LANconfig、FileZilla 3.66.4 之前、Nova 11.8 之前、PKIX-SSH 14.4 之前、SecureCRT 9.4.3 之前、Transmit5 5.10.4 之前、Win32-OpenSSH 9.5.0.0p1-Beta 之前、WinSCP 6.2.2 之前、Bitvise SSH Server 9.32 之前、Bitvise SSH Client 9.33 之前、KiTTY 至0.76.1.13、Ruby 的 net-ssh gem 7.2.0、Node.js 的 1.15.0 之前的 mscdex ssh2 模块、Rust 的 0.35.1 之前的 thrussh 库以及 Rust 的 0.40.2 之前的 Russh 板条箱。

漏洞判定


        

        

            
修复方式

            
软件包升级
dnf update python3-paramiko


        

  
        

            
补丁

            
厂商补丁:
目前厂商已发布升级补丁以修复漏洞，补丁获取链接:

https://www.openssh.com/openbsd.html

        

        

            
参考

            

                                https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html

                                https://matt.ucc.asn.au/dropbear/CHANGES

                                https://www.openssh.com/openbsd.html

                                https://github.com/openssh/openssh-portable/commits/master

                                https://groups.google.com/g/golang-announce/c/-n5WqVC18LQ

                                https://www.bitvise.com/ssh-server-version-history

                                https://github.com/ronf/asyncssh/tags

                                https://gitlab.com/libssh/libssh-mirror/-/tags

                                https://www.reddit.com/r/sysadmin/comments/18idv52/cve202348795_why_is_this_cve_still_undisclosed/

                                https://github.com/erlang/otp/blob/d1b43dc0f1361d2ad67601169e90a7fc50bb0369/lib/ssh/doc/src/notes.xml#L39-L42

                                https://www.openssh.com/txt/release-9.6

                                https://jadaptive.com/important-java-ssh-security-update-new-ssh-vulnerability-discovered-cve-2023-48795/

                                https://www.terrapin-attack.com

                                https://github.com/mkj/dropbear/blob/17657c36cce6df7716d5ff151ec09a665382d5dd/CHANGES#L25

                                https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst

                                https://thorntech.com/cve-2023-48795-and-sftp-gateway/

                                https://github.com/warp-tech/russh/releases/tag/v0.40.2

                                https://github.com/TeraTermProject/teraterm/commit/7279fbd6ef4d0c8bdd6a90af4ada2899d786eec0

                                https://www.openwall.com/lists/oss-security/2023/12/18/2

                                https://twitter.com/TrueSkrillor/status/1736774389725565005

                                https://github.com/golang/crypto/commit/9d2ee975ef9fe627bf0a6f01c1f69e8ef1d4f05d

                                https://github.com/paramiko/paramiko/issues/2337

                                https://groups.google.com/g/golang-announce/c/qA3XtxvMUyg

                                https://news.ycombinator.com/item?id=38684904

                                https://news.ycombinator.com/item?id=38685286

                                http://www.openwall.com/lists/oss-security/2023/12/18/3

                                https://github.com/mwiede/jsch/issues/457

                                https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.10&id=10e09e273f69e149389b3e0e5d44b8c221c2e7f6

                                https://github.com/erlang/otp/releases/tag/OTP-26.2.1

                                https://github.com/advisories/GHSA-45x7-px36-x8w8

                                https://security-tracker.debian.org/tracker/source-package/libssh2

                                https://security-tracker.debian.org/tracker/source-package/proftpd-dfsg

                                https://security-tracker.debian.org/tracker/CVE-2023-48795

                                https://bugzilla.suse.com/show_bug.cgi?id=1217950

                                https://bugzilla.redhat.com/show_bug.cgi?id=2254210

                                https://bugs.gentoo.org/920280

                                https://ubuntu.com/security/CVE-2023-48795

                                https://www.suse.com/c/suse-addresses-the-ssh-v2-protocol-terrapin-attack-aka-cve-2023-48795/

                                https://access.redhat.com/security/cve/cve-2023-48795

                                https://github.com/mwiede/jsch/pull/461

                                https://github.com/drakkan/sftpgo/releases/tag/v2.5.6

                                https://github.com/libssh2/libssh2/pull/1291

                                https://forum.netgate.com/topic/184941/terrapin-ssh-attack

                                https://github.com/jtesta/ssh-audit/commit/8e972c5e94b460379fe0c7d20209c16df81538a5

                                https://github.com/rapier1/hpn-ssh/releases

                                https://github.com/proftpd/proftpd/blob/master/RELEASE_NOTES

                                https://www.netsarang.com/en/xshell-update-history/

                                https://www.paramiko.org/changelog.html

                                https://github.com/proftpd/proftpd/issues/456

                                https://github.com/TeraTermProject/teraterm/releases/tag/v5.1

                                https://github.com/mwiede/jsch/compare/jsch-0.2.14...jsch-0.2.15

                                https://oryx-embedded.com/download/#changelog

                                https://www.crushftp.com/crush10wiki/Wiki.jsp?page=Update

                                https://github.com/connectbot/sshlib/compare/2.2.21...2.2.22

                                https://github.com/connectbot/sshlib/commit/5c8b534f6e97db7ac0e0e579331213aa25c173ab

                                https://github.com/mscdex/ssh2/commit/97b223f8891b96d6fc054df5ab1d5a1a545da2a3

                                https://nest.pijul.com/pijul/thrussh/changes/D6H7OWTTMHHX6BTB3B6MNBOBX2L66CBL4LGSEUSAI2MCRCJDQFRQC

                                https://crates.io/crates/thrussh/versions

                                https://github.com/NixOS/nixpkgs/pull/275249

                                http://www.openwall.com/lists/oss-security/2023/12/19/5

                                https://www.freebsd.org/security/advisories/FreeBSD-SA-23:19.openssh.asc

                                https://arstechnica.com/security/2023/12/hackers-can-break-ssh-channel-integrity-using-novel-data-corruption-attack/

                                http://www.openwall.com/lists/oss-security/2023/12/20/3

                                https://github.com/proftpd/proftpd/blob/d21e7a2e47e9b38f709bec58e3fa711f759ad0e1/RELEASE_NOTES

                                https://github.com/proftpd/proftpd/blob/0a7ea9b0ba9fcdf368374a226370d08f10397d99/RELEASE_NOTES

                                https://github.com/apache/mina-sshd/issues/445

                                https://github.com/hierynomus/sshj/issues/916

                                https://github.com/janmojzis/tinyssh/issues/81

                                https://www.openwall.com/lists/oss-security/2023/12/20/3

                                https://security-tracker.debian.org/tracker/source-package/trilead-ssh2

                                https://github.com/net-ssh/net-ssh/blob/2e65064a52d73396bfc3806c9196fc8108f33cd8/CHANGES.txt#L14-L16

                                http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MKQRBF3DWMWPH36LBCOBUTSIZRTPEZXB/

                                https://www.debian.org/security/2023/dsa-5586

                                https://www.lancom-systems.de/service-support/allgemeine-sicherheitshinweise#c243508

                                https://www.theregister.com/2023/12/20/terrapin_attack_ssh

                                https://filezilla-project.org/versions.php

                                https://nova.app/releases/#v11.8

                                https://roumenpetrov.info/secsh/#news20231220

                                https://www.vandyke.com/products/securecrt/history.txt

                                https://help.panic.com/releasenotes/transmit5/

                                https://github.com/PowerShell/Win32-OpenSSH/releases/tag/v9.5.0.0p1-Beta

                                https://github.com/PowerShell/Win32-OpenSSH/issues/2189

                                https://winscp.net/eng/docs/history#6.2.2

                                https://www.bitvise.com/ssh-client-version-history#933

                                https://github.com/cyd01/KiTTY/issues/520

                                https://www.debian.org/security/2023/dsa-5588

                                https://github.com/ssh-mitm/ssh-mitm/issues/165

                                https://news.ycombinator.com/item?id=38732005

                                https://lists.debian.org/debian-lts-announce/2023/12/msg00017.html

                                https://security.gentoo.org/glsa/202312-16

                                https://security.gentoo.org/glsa/202312-17

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3YQLUQWLIHDB5QCXQEX7HXHAWMOKPP5O/

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7EYCFQCTSGJXWO3ZZ44MGKFC5HA7G3Y/

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APYIXIQOVDCRWLHTGB4VYMAUIAQLKYJ3/

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QI3EHAHABFQK7OABNCSF5GMYP6TONTI7/

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KMZCVGUGJZZVDPCVDA7TEB22VUCNEXDD/

                                https://security.netapp.com/advisory/ntap-20240105-0004/

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3CAYYW35MUTNO65RVAELICTNZZFMT2XS/

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZQVUHWVWRH73YBXUQJOD6CKHDQBU3DM/

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C3AFMZ6MH2UHHOPIWT5YLSFV3D2VB3AC/

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BL5KTLOSLH2KHRN4HCXJPK3JUVLDGEL6/

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/33XHJUB6ROFUOH2OQNENFROTVH6MHSHA/

                                https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0002

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHHITS4PUOZAKFIUBQAQZC7JWXMOYE4B/

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I724O3LSRCPO4WNVIXTZCT4VVRMXMMSG/

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KEOTKBUPZXHE3F352JBYNTSNRXYLWD6P/

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HYEDEXIKFKTUJIN43RG4B7T5ZS6MHUSP/

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6Y74KVCPEPT4MVU3LHDWCNNOXOE5ZLUR/

                                https://lists.debian.org/debian-lts-announce/2024/01/msg00013.html

                                https://lists.debian.org/debian-lts-announce/2024/01/msg00014.html

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L5Y6MNNVAPIJSXJERQ6PKZVCIUXSNJK7/

                                https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3JIMLVBDWOP4FUPXPTB4PGHHIOMGFLQE/

                                https://support.apple.com/kb/HT214084

                                http://seclists.org/fulldisclosure/2024/Mar/21

                                https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html

                                http://www.openwall.com/lists/oss-security/2024/04/17/8

                                http://www.openwall.com/lists/oss-security/2024/03/06/3