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:libssh
CVSS评分:5.9
发现日期:2024-09-19
修复日期:2024-09-19
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
rpm -ivh libssh-0.9.4-5.rf01.zkhq8


        

  
        

            
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

            

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/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