high
7
Advisory Published
Updated

CVE-2021-41617

First published: Sun Sep 26 2021(Updated: )

sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group memberships of the sshd process, if the configuration specifies running the command as a different user.

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
debian/openssh<=1:7.9p1-10+deb10u2<=1:7.9p1-10<=1:8.4p1-5<=1:8.4p1-6
1:8.7p1-1
1:8.4p1-5+deb11u3
ubuntu/openssh<1:8.2
1:8.2
ubuntu/openssh<8.8
8.8
ubuntu/openssh<1:7.2
1:7.2
Openbsd Openssh>=6.2<8.8
Fedoraproject Fedora=33
Fedoraproject Fedora=34
Fedoraproject Fedora=35
Netapp Active Iq Unified Manager Vmware Vsphere
NetApp Clustered Data ONTAP
Netapp Hci Management Node
NetApp ONTAP Select Deploy administration utility
Netapp Solidfire
Netapp Aff A250 Firmware
Netapp Aff A250
Netapp Aff 500f Firmware
Netapp Aff 500f
Oracle HTTP Server=12.2.1.2.0
Oracle HTTP Server=12.2.1.3.0
Oracle HTTP Server=12.2.1.4.0
Oracle ZFS Storage Appliance Kit=8.8
Starwindsoftware Starwind Virtual San=v8r13-14398
All of
Netapp Aff A250
Netapp Aff A250 Firmware
All of
Netapp Aff 500f
Netapp Aff 500f Firmware
debian/openssh
1:8.4p1-5+deb11u3
1:9.2p1-2+deb12u2
1:9.2p1-2+deb12u3
1:9.8p1-2
1:9.8p1-3

Remedy

https://bugzilla.suse.com/show_bug.cgi?id=1190975

Remedy

https://www.oracle.com/security-alerts/cpuapr2022.html

Remedy

https://github.com/openssh/openssh-portable/commit/f3cbe43e28fe71427d41cfe3a17125b972710455

Remedy

https://github.com/openssh/openssh-portable/commit/bf944e3794eff5413f2df1ef37cddf96918c6bde

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID for this OpenSSH vulnerability?

    The vulnerability ID for this OpenSSH vulnerability is CVE-2021-41617.

  • What is the severity level of CVE-2021-41617?

    The severity level of CVE-2021-41617 is high with a severity value of 7.

  • Which versions of OpenSSH are affected by CVE-2021-41617?

    OpenSSH versions 6.2 through 8.x before 8.8 are affected by CVE-2021-41617.

  • How does CVE-2021-41617 allow privilege escalation?

    CVE-2021-41617 allows privilege escalation when certain non-default configurations of OpenSSH are used and supplemental groups are not initialized as expected.

  • Are there any references available for CVE-2021-41617?

    Yes, you can find references for CVE-2021-41617 at the following links: [1](https://bugzilla.suse.com/show_bug.cgi?id=1190975), [2](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6XJIONMHMKZDTMH6BQR5TNLF2WDCGWED/), [3](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KVI7RWM2JLNMWTOFK6BDUSGNOIPZYPUT/)

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