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CVE-2024-6387NVD
Vulnerability Summary
A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.
CVSS v3.1 Base Metrics — Score 8.1 (HIGH)
Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
Affected & Patched Versions
- Sonicwall Sma 6200 Firmware
- Sonicwall Sma 7200 Firmware
- Arista Eos >= 4.32.0 and <= 4.32.1f
- Canonical Ubuntu Linux
- Almalinux Almalinux
- Sonicwall Sma 6210 Firmware
- Sonicwall Sma 7210 Firmware
- Sonicwall Sma 8200v Firmware
- Sonicwall Sra Ex 7000 Firmware
- Netapp A1k Firmware
- Netapp A70 Firmware
- Netapp A90 Firmware
- Netapp A700s Firmware
- Netapp 8300 Firmware
- Netapp 8700 Firmware
- Netapp A400 Firmware
- Netapp C400 Firmware
- Netapp A250 Firmware
- Netapp 500f Firmware
- Netapp C250 Firmware
- Netapp A800 Firmware
- Netapp C800 Firmware
- Netapp A900 Firmware
- Netapp A9500 Firmware
- Netapp C190 Firmware
- Netapp A150 Firmware
- Netapp A220 Firmware
- Netapp Fas2720 Firmware
- Netapp Fas2750 Firmware
- Netapp Fas2820 Firmware
- Netapp Bootstrap Os
- Apple Macos >= 12.0 and < 12.7.6
- Apple Macos >= 13.0 and < 13.6.8
- Apple Macos >= 14.0 and < 14.6
- Openbsd Openssh < 4.4
- Openbsd Openssh >= 8.6 and <= 9.8
- Openbsd Openssh
- Redhat Openshift Container Platform
- Redhat Enterprise Linux
- Redhat Enterprise Linux Eus
- Redhat Enterprise Linux For Arm 64
- Redhat Enterprise Linux For Arm 64 Eus
- Redhat Enterprise Linux For Ibm Z Systems
- Redhat Enterprise Linux For Ibm Z Systems Eus
- Redhat Enterprise Linux For Power Little Endian
- Redhat Enterprise Linux For Power Little Endian Eus
- Redhat Enterprise Linux Server Aus
- Suse Linux Enterprise Micro
- Debian Debian Linux
- Amazon Amazon Linux
- Netapp Active Iq Unified Manager
- Netapp E-series Santricity Os Controller >= 11.0.0 and <= 11.70.2
- Netapp Ontap
- Netapp Ontap Select Deploy Administration Utility
- Netapp Ontap Tools
- Freebsd Freebsd
- Netbsd Netbsd <= 10.0.0
- Apple Macos 12.7.6
- Apple Macos 13.6.8
- Apple Macos 14.6
- Openbsd Openssh 4.4
External References
- https://access.redhat.com/errata/RHSA-2024:4312
- https://access.redhat.com/errata/RHSA-2024:4340
- https://access.redhat.com/errata/RHSA-2024:4389
- https://access.redhat.com/errata/RHSA-2024:4469
- https://access.redhat.com/errata/RHSA-2024:4474
- https://access.redhat.com/errata/RHSA-2024:4479
- https://access.redhat.com/errata/RHSA-2024:4484
- https://access.redhat.com/security/cve/CVE-2024-6387
- https://bugzilla.redhat.com/show_bug.cgi?id=2294604
- https://santandersecurityresearch.github.io/blog/sshing_the_masses.html
- https://www.openssh.com/txt/release-9.8
- https://www.qualys.com/2024/07/01/cve-2024-6387/regresshion.txt
- http://seclists.org/fulldisclosure/2024/Jul/18
- http://seclists.org/fulldisclosure/2024/Jul/19
- http://seclists.org/fulldisclosure/2024/Jul/20
- http://www.openwall.com/lists/oss-security/2024/07/01/12
- http://www.openwall.com/lists/oss-security/2024/07/01/13
- http://www.openwall.com/lists/oss-security/2024/07/02/1
- http://www.openwall.com/lists/oss-security/2024/07/03/1
- http://www.openwall.com/lists/oss-security/2024/07/03/11
- http://www.openwall.com/lists/oss-security/2024/07/03/2
- http://www.openwall.com/lists/oss-security/2024/07/03/3
- http://www.openwall.com/lists/oss-security/2024/07/03/4
- http://www.openwall.com/lists/oss-security/2024/07/03/5
- http://www.openwall.com/lists/oss-security/2024/07/04/1
- http://www.openwall.com/lists/oss-security/2024/07/04/2
- http://www.openwall.com/lists/oss-security/2024/07/08/2
- http://www.openwall.com/lists/oss-security/2024/07/08/3
- http://www.openwall.com/lists/oss-security/2024/07/09/2
- http://www.openwall.com/lists/oss-security/2024/07/09/5
- http://www.openwall.com/lists/oss-security/2024/07/10/1
- http://www.openwall.com/lists/oss-security/2024/07/10/2
- http://www.openwall.com/lists/oss-security/2024/07/10/3
- http://www.openwall.com/lists/oss-security/2024/07/10/4
- http://www.openwall.com/lists/oss-security/2024/07/10/6
- http://www.openwall.com/lists/oss-security/2024/07/11/1
- http://www.openwall.com/lists/oss-security/2024/07/11/3
- http://www.openwall.com/lists/oss-security/2024/07/23/4
- http://www.openwall.com/lists/oss-security/2024/07/23/6
- http://www.openwall.com/lists/oss-security/2024/07/28/2
- http://www.openwall.com/lists/oss-security/2024/07/28/3
- https://access.redhat.com/errata/RHSA-2024:4312
- https://access.redhat.com/errata/RHSA-2024:4340
- https://access.redhat.com/errata/RHSA-2024:4389
- https://access.redhat.com/errata/RHSA-2024:4469
- https://access.redhat.com/errata/RHSA-2024:4474
- https://access.redhat.com/errata/RHSA-2024:4479
- https://access.redhat.com/errata/RHSA-2024:4484
- https://access.redhat.com/security/cve/CVE-2024-6387
- https://archlinux.org/news/the-sshd-service-needs-to-be-restarted-after-upgrading-to-openssh-98p1/
- https://arstechnica.com/security/2024/07/regresshion-vulnerability-in-openssh-gives-attackers-root-on-linux/
- https://blog.qualys.com/vulnerabilities-threat-research/2024/07/01/regresshion-remote-unauthenticated-code-execution-vulnerability-in-openssh-server
- https://bugzilla.redhat.com/show_bug.cgi?id=2294604
- https://explore.alas.aws.amazon.com/CVE-2024-6387.html
- https://forum.vmssoftware.com/viewtopic.php?f=8&t=9132
- https://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2024-002.txt.asc
- https://github.com/AlmaLinux/updates/issues/629
- https://github.com/Azure/AKS/issues/4379
- https://github.com/PowerShell/Win32-OpenSSH/discussions/2248
- https://github.com/PowerShell/Win32-OpenSSH/issues/2249
- https://github.com/microsoft/azurelinux/issues/9555
- https://github.com/openela-main/openssh/commit/e1f438970e5a337a17070a637c1b9e19697cad09
- https://github.com/oracle/oracle-linux/issues/149
- https://github.com/rapier1/hpn-ssh/issues/87
- https://github.com/zgzhang/cve-2024-6387-poc
- https://lists.almalinux.org/archives/list/announce@lists.almalinux.org/thread/23BF5BMGFVEVUI2WNVAGMLKT557EU7VY/
- https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html
- https://lists.mindrot.org/pipermail/openssh-unix-dev/2024-July/041431.html
- https://news.ycombinator.com/item?id=40843778
- https://packetstorm.news/files/id/190587/
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0010
- https://santandersecurityresearch.github.io/blog/sshing_the_masses.html
- https://security-tracker.debian.org/tracker/CVE-2024-6387
- https://security.netapp.com/advisory/ntap-20240701-0001/
- https://sig-security.rocky.page/issues/CVE-2024-6387/
- https://stackdiary.com/openssh-race-condition-in-sshd-allows-remote-code-execution/
- https://support.apple.com/kb/HT214118
- https://support.apple.com/kb/HT214119
- https://support.apple.com/kb/HT214120
- https://ubuntu.com/security/CVE-2024-6387
- https://ubuntu.com/security/notices/USN-6859-1
- https://www.akamai.com/blog/security-research/2024-openssh-vulnerability-regression-what-to-know-and-do
- https://www.arista.com/en/support/advisories-notices/security-advisory/19904-security-advisory-0100
- https://www.exploit-db.com/exploits/52269
- https://www.freebsd.org/security/advisories/FreeBSD-SA-24:04.openssh.asc
- https://www.openssh.com/txt/release-9.8
- https://www.qualys.com/2024/07/01/cve-2024-6387/regresshion.txt
- https://www.splunk.com/en_us/blog/security/cve-2024-6387-regresshion-vulnerability.html
- https://www.suse.com/security/cve/CVE-2024-6387.html
- https://www.theregister.com/2024/07/01/regresshion_openssh/
- https://www.vicarius.io/vsociety/posts/regresshion-an-openssh-regression-error-cve-2024-6387
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-446545.html