![]() ![]() ![]() ** DISPUTED ** An issue was discovered in OpenSSH before 8.9. 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. 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. There are no known workarounds for this issue. Users are advised to upgrade to version 0.0.6, which no longer includes the raw field value in the error message. An attacker able to modify the declared length of a key's sensitive field can thus expose the raw value of that field. In versions prior to 0.0.6 if a field of a key is shorter than it is declared to be, the parser raises an error with a message containing the raw field value. Stick with the CentOS version, run `yum update` regularly and get security updates to the installed copy automatically.Openssh_key_parser is an open source Python package providing utilities to parse and pack OpenSSH private and public key files. ![]() So you'd have to subscribe to the openssh mailing list to get notification that a newer version was out and then repackage it and rebuild it and reinstall it.Īll far too much work. Or you have to package it yourself and install it as an upgrade, in which case, next time there is a security vulnerability in it and Red Hat fix it then you would not get the updated version of 7.4p1 as your installed one would be a higher version. For a start, where would you get it from? No-one supplies a packaged version of this so you would have to build it yourself and if you do that from source and install it then it will overwrite the one we supply and next time there is an upgrade to ours, it will back out your self-built version and maybe render it non-operational (which I guess is 'secure'!). avoid segfault in Kerberos cache cleanup (#1999263)Īnd, no, upgrading to openssh 8.x is not practical or recommended. Please do let us know for any further information.Ĭode: Select all * Thu Dmitry Belyavskiy - 7.4p1-22 + 0.10.3-2 Here is an article from tenable regarding this : To CentOS 7 then please do let us know the best recommended solution to address this issue. Please correct me if I am wrong.Ĭould you please confirm if this is a false-positive and won't applicable for CentOS 7 ? If this is not false-positive and applicable ![]() I am sure this may leads to many issues due to incompatibility. So, I don't think this is a best practice method, I mean using openssh package with version 8.x on CentOS version 7 , Tenable is suggesting us to upgrade openssh package version to 8.2 or higher on these machines.īut, I am sure Red Hat/CentOS 7 started shipping this openssh version 8.x from RHEL/CentOS 8 only. Recent scan(by tenable) on the servers found a vulnerability with Current openssh version.Ĭurrent version of openssh package is 7.4p1, please find the below information: In our infra we're having the servers installed with CentOS 7. ![]()
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