CVE-2024-6387
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
0.791 High
EPSS
Percentile
98.3%
A security regression (CVE-2006-5051) was discovered in OpenSSH’s server (sshd). There is a race condition which can lead to 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.
References
www.openwall.com/lists/oss-security/2024/07/01/12
www.openwall.com/lists/oss-security/2024/07/01/13
www.openwall.com/lists/oss-security/2024/07/02/1
www.openwall.com/lists/oss-security/2024/07/03/1
www.openwall.com/lists/oss-security/2024/07/03/2
www.openwall.com/lists/oss-security/2024/07/03/3
www.openwall.com/lists/oss-security/2024/07/03/4
www.openwall.com/lists/oss-security/2024/07/03/5
access.redhat.com/security/cve/CVE-2024-6387
archlinux.org/news/the-sshd-service-needs-to-be-restarted-after-upgrading-to-openssh-98p1/
blog.qualys.com/vulnerabilities-threat-research/2024/07/01/regresshion-remote-unauthenticated-code-execution-vulnerability-in-openssh-server
bugzilla.redhat.com/show_bug.cgi?id=2294604
explore.alas.aws.amazon.com/CVE-2024-6387.html
ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2024-002.txt.asc
github.com/oracle/oracle-linux/issues/149
github.com/rapier1/hpn-ssh/issues/87
github.com/zgzhang/cve-2024-6387-poc
lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html
lists.mindrot.org/pipermail/openssh-unix-dev/2024-July/041431.html
news.ycombinator.com/item?id=40843778
psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0010
security-tracker.debian.org/tracker/CVE-2024-6387
security.netapp.com/advisory/ntap-20240701-0001/
stackdiary.com/openssh-race-condition-in-sshd-allows-remote-code-execution/
ubuntu.com/security/CVE-2024-6387
ubuntu.com/security/notices/USN-6859-1
www.freebsd.org/security/advisories/FreeBSD-SA-24:04.openssh.asc
www.openssh.com/txt/release-9.8
www.qualys.com/2024/07/01/cve-2024-6387/regresshion.txt
www.suse.com/security/cve/CVE-2024-6387.html
www.theregister.com/2024/07/01/regresshion_openssh/
Related
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
0.791 High
EPSS
Percentile
98.3%