ID de Prueba:	1.3.6.1.4.1.25623.1.1.10.2024.0004
Categoría:	Mageia Linux Local Security Checks
Título:	Mageia: Security Advisory (MGASA-2024-0004)
Resumen:	The remote host is missing an update for the 'dropbear' package(s) announced via the MGASA-2024-0004 advisory.
Descripción:	Summary: The remote host is missing an update for the 'dropbear' package(s) announced via the MGASA-2024-0004 advisory. Vulnerability Insight: Parts of the SSH specification are vulnerable to a novel prefix truncation attack (a.k.a. Terrapin attack), which allows a man-in-the-middle attacker to strip an arbitrary number of messages right after the initial key exchange, breaking SSH extension negotiation (RFC8308) in the process and thus downgrading connection security. ### Mitigations To mitigate this protocol vulnerability, OpenSSH suggested a so-called 'strict kex' which alters the SSH handshake to ensure a Man-in-the-Middle attacker cannot introduce unauthenticated messages as well as convey sequence number manipulation across handshakes. Support for strict key exchange has been added to a variety of SSH implementations, including OpenSSH itself, PuTTY, libssh, and more. This release includes a patch to implement Strict KEX mode. Affected Software/OS: 'dropbear' package(s) on Mageia 9. Solution: Please install the updated package(s). CVSS Score: 5.4 CVSS Vector: AV:N/AC:H/Au:N/C:N/I:C/A:N
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2023-48795 Debian Security Information: DSA-5586 (Google Search) https://www.debian.org/security/2023/dsa-5586 Debian Security Information: DSA-5588 (Google Search) https://www.debian.org/security/2023/dsa-5588 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MKQRBF3DWMWPH36LBCOBUTSIZRTPEZXB/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KMZCVGUGJZZVDPCVDA7TEB22VUCNEXDD/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3YQLUQWLIHDB5QCXQEX7HXHAWMOKPP5O/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LZQVUHWVWRH73YBXUQJOD6CKHDQBU3DM/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QI3EHAHABFQK7OABNCSF5GMYP6TONTI7/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/F7EYCFQCTSGJXWO3ZZ44MGKFC5HA7G3Y/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/APYIXIQOVDCRWLHTGB4VYMAUIAQLKYJ3/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6Y74KVCPEPT4MVU3LHDWCNNOXOE5ZLUR/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I724O3LSRCPO4WNVIXTZCT4VVRMXMMSG/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/33XHJUB6ROFUOH2OQNENFROTVH6MHSHA/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3CAYYW35MUTNO65RVAELICTNZZFMT2XS/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3JIMLVBDWOP4FUPXPTB4PGHHIOMGFLQE/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BL5KTLOSLH2KHRN4HCXJPK3JUVLDGEL6/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HYEDEXIKFKTUJIN43RG4B7T5ZS6MHUSP/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L5Y6MNNVAPIJSXJERQ6PKZVCIUXSNJK7/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CHHITS4PUOZAKFIUBQAQZC7JWXMOYE4B/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C3AFMZ6MH2UHHOPIWT5YLSFV3D2VB3AC/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KEOTKBUPZXHE3F352JBYNTSNRXYLWD6P/ http://seclists.org/fulldisclosure/2024/Mar/21 https://security.gentoo.org/glsa/202312-16 https://security.gentoo.org/glsa/202312-17 http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html https://access.redhat.com/security/cve/cve-2023-48795 https://arstechnica.com/security/2023/12/hackers-can-break-ssh-channel-integrity-using-novel-data-corruption-attack/ https://bugs.gentoo.org/920280 https://bugzilla.redhat.com/show_bug.cgi?id=2254210 https://bugzilla.suse.com/show_bug.cgi?id=1217950 https://crates.io/crates/thrussh/versions https://filezilla-project.org/versions.php https://forum.netgate.com/topic/184941/terrapin-ssh-attack https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.10&id=10e09e273f69e149389b3e0e5d44b8c221c2e7f6 https://github.com/NixOS/nixpkgs/pull/275249 https://github.com/PowerShell/Win32-OpenSSH/issues/2189 https://github.com/PowerShell/Win32-OpenSSH/releases/tag/v9.5.0.0p1-Beta https://github.com/TeraTermProject/teraterm/commit/7279fbd6ef4d0c8bdd6a90af4ada2899d786eec0 https://github.com/TeraTermProject/teraterm/releases/tag/v5.1 https://github.com/advisories/GHSA-45x7-px36-x8w8 https://github.com/apache/mina-sshd/issues/445 https://github.com/connectbot/sshlib/commit/5c8b534f6e97db7ac0e0e579331213aa25c173ab https://github.com/connectbot/sshlib/compare/2.2.21...2.2.22 https://github.com/cyd01/KiTTY/issues/520 https://github.com/drakkan/sftpgo/releases/tag/v2.5.6 https://github.com/erlang/otp/blob/d1b43dc0f1361d2ad67601169e90a7fc50bb0369/lib/ssh/doc/src/notes.xml#L39-L42 https://github.com/erlang/otp/releases/tag/OTP-26.2.1 https://github.com/golang/crypto/commit/9d2ee975ef9fe627bf0a6f01c1f69e8ef1d4f05d https://github.com/hierynomus/sshj/issues/916 https://github.com/janmojzis/tinyssh/issues/81 https://github.com/jtesta/ssh-audit/commit/8e972c5e94b460379fe0c7d20209c16df81538a5 https://github.com/libssh2/libssh2/pull/1291 https://github.com/mkj/dropbear/blob/17657c36cce6df7716d5ff151ec09a665382d5dd/CHANGES#L25 https://github.com/mscdex/ssh2/commit/97b223f8891b96d6fc054df5ab1d5a1a545da2a3 https://github.com/mwiede/jsch/compare/jsch-0.2.14...jsch-0.2.15 https://github.com/mwiede/jsch/issues/457 https://github.com/mwiede/jsch/pull/461 https://github.com/net-ssh/net-ssh/blob/2e65064a52d73396bfc3806c9196fc8108f33cd8/CHANGES.txt#L14-L16 https://github.com/openssh/openssh-portable/commits/master https://github.com/paramiko/paramiko/issues/2337 https://github.com/proftpd/proftpd/blob/0a7ea9b0ba9fcdf368374a226370d08f10397d99/RELEASE_NOTES https://github.com/proftpd/proftpd/blob/d21e7a2e47e9b38f709bec58e3fa711f759ad0e1/RELEASE_NOTES https://github.com/proftpd/proftpd/blob/master/RELEASE_NOTES https://github.com/proftpd/proftpd/issues/456 https://github.com/rapier1/hpn-ssh/releases https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst https://github.com/ronf/asyncssh/tags https://github.com/ssh-mitm/ssh-mitm/issues/165 https://github.com/warp-tech/russh/releases/tag/v0.40.2 https://gitlab.com/libssh/libssh-mirror/-/tags https://groups.google.com/g/golang-announce/c/-n5WqVC18LQ https://groups.google.com/g/golang-announce/c/qA3XtxvMUyg https://help.panic.com/releasenotes/transmit5/ https://jadaptive.com/important-java-ssh-security-update-new-ssh-vulnerability-discovered-cve-2023-48795/ https://matt.ucc.asn.au/dropbear/CHANGES https://nest.pijul.com/pijul/thrussh/changes/D6H7OWTTMHHX6BTB3B6MNBOBX2L66CBL4LGSEUSAI2MCRCJDQFRQC https://news.ycombinator.com/item?id=38684904 https://news.ycombinator.com/item?id=38685286 https://news.ycombinator.com/item?id=38732005 https://nova.app/releases/#v11.8 https://oryx-embedded.com/download/#changelog https://roumenpetrov.info/secsh/#news20231220 https://security-tracker.debian.org/tracker/CVE-2023-48795 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/source-package/trilead-ssh2 https://thorntech.com/cve-2023-48795-and-sftp-gateway/ https://twitter.com/TrueSkrillor/status/1736774389725565005 https://ubuntu.com/security/CVE-2023-48795 https://winscp.net/eng/docs/history#6.2.2 https://www.bitvise.com/ssh-client-version-history#933 https://www.bitvise.com/ssh-server-version-history https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html https://www.crushftp.com/crush10wiki/Wiki.jsp?page=Update https://www.freebsd.org/security/advisories/FreeBSD-SA-23:19.openssh.asc https://www.lancom-systems.de/service-support/allgemeine-sicherheitshinweise#c243508 https://www.netsarang.com/en/xshell-update-history/ https://www.openssh.com/openbsd.html https://www.openssh.com/txt/release-9.6 https://www.openwall.com/lists/oss-security/2023/12/18/2 https://www.openwall.com/lists/oss-security/2023/12/20/3 https://www.paramiko.org/changelog.html https://www.reddit.com/r/sysadmin/comments/18idv52/cve202348795_why_is_this_cve_still_undisclosed/ https://www.suse.com/c/suse-addresses-the-ssh-v2-protocol-terrapin-attack-aka-cve-2023-48795/ https://www.terrapin-attack.com https://www.theregister.com/2023/12/20/terrapin_attack_ssh https://www.vandyke.com/products/securecrt/history.txt https://lists.debian.org/debian-lts-announce/2023/12/msg00017.html https://lists.debian.org/debian-lts-announce/2024/01/msg00013.html https://lists.debian.org/debian-lts-announce/2024/01/msg00014.html https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html http://www.openwall.com/lists/oss-security/2023/12/18/3 http://www.openwall.com/lists/oss-security/2023/12/19/5 http://www.openwall.com/lists/oss-security/2023/12/20/3 http://www.openwall.com/lists/oss-security/2024/03/06/3 http://www.openwall.com/lists/oss-security/2024/04/17/8
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