CVE-2006-5794 Auth bypass in n/a
High 7.5
Published
Updated
Check this codebase for CVE-2006-5794 and fix it if it is affected.
What it is: CVE-2006-5794 is a high-severity authentication bypass vulnerability in OpenSSH, published on 8 Nov 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2006-5794 in the wild and no public exploit code.
Affected product: OpenSSH. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2006-5794/ (Markdown: https://insights.sbomify.com/CVE-2006-5794/index.md)
Weak verification in OpenSSH Privilege Separation Monitor may allow attackers to bypass authentication, though exploitation requires leveraging other unprivileged process vulnerabilities.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2006-5794?
CVE-2006-5794 is a high-severity authentication bypass vulnerability in OpenSSH, published on 8 Nov 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Unspecified vulnerability in the sshd Privilege Separation Monitor in OpenSSH before 4.5 causes weaker verification that authentication has been successful, which might allow attackers to bypass authentication. NOTE: as of 20061108, it is believed that this issue is only exploitable by leveraging vulnerabilities in the unprivileged process, which are not known to exist.
Which versions are affected by CVE-2006-5794?
It affects 1 product.
Linux distribution packages (40)
openssh Red Hat:enterprise_linux:3::as | All versions | 0:3.6.1p2-33.30.13 |
openssh-askpass Red Hat:enterprise_linux:3::as | All versions | 0:3.6.1p2-33.30.13 |
openssh-askpass-gnome Red Hat:enterprise_linux:3::as | All versions | 0:3.6.1p2-33.30.13 |
openssh-clients Red Hat:enterprise_linux:3::as | All versions | 0:3.6.1p2-33.30.13 |
openssh-debuginfo Red Hat:enterprise_linux:3::as | All versions | 0:3.6.1p2-33.30.13 |
openssh-server Red Hat:enterprise_linux:3::as | All versions | 0:3.6.1p2-33.30.13 |
openssh Red Hat:enterprise_linux:3::desktop | All versions | 0:3.6.1p2-33.30.13 |
openssh-askpass Red Hat:enterprise_linux:3::desktop | All versions | 0:3.6.1p2-33.30.13 |
openssh-askpass-gnome Red Hat:enterprise_linux:3::desktop | All versions | 0:3.6.1p2-33.30.13 |
openssh-clients Red Hat:enterprise_linux:3::desktop | All versions | 0:3.6.1p2-33.30.13 |
openssh-debuginfo Red Hat:enterprise_linux:3::desktop | All versions | 0:3.6.1p2-33.30.13 |
openssh-server Red Hat:enterprise_linux:3::desktop | All versions | 0:3.6.1p2-33.30.13 |
openssh Red Hat:enterprise_linux:3::es | All versions | 0:3.6.1p2-33.30.13 |
openssh-askpass Red Hat:enterprise_linux:3::es | All versions | 0:3.6.1p2-33.30.13 |
openssh-askpass-gnome Red Hat:enterprise_linux:3::es | All versions | 0:3.6.1p2-33.30.13 |
openssh-clients Red Hat:enterprise_linux:3::es | All versions | 0:3.6.1p2-33.30.13 |
openssh-debuginfo Red Hat:enterprise_linux:3::es | All versions | 0:3.6.1p2-33.30.13 |
openssh-server Red Hat:enterprise_linux:3::es | All versions | 0:3.6.1p2-33.30.13 |
openssh Red Hat:enterprise_linux:3::ws | All versions | 0:3.6.1p2-33.30.13 |
openssh-askpass Red Hat:enterprise_linux:3::ws | All versions | 0:3.6.1p2-33.30.13 |
openssh-askpass-gnome Red Hat:enterprise_linux:3::ws | All versions | 0:3.6.1p2-33.30.13 |
openssh-clients Red Hat:enterprise_linux:3::ws | All versions | 0:3.6.1p2-33.30.13 |
openssh-debuginfo Red Hat:enterprise_linux:3::ws | All versions | 0:3.6.1p2-33.30.13 |
openssh-server Red Hat:enterprise_linux:3::ws | All versions | 0:3.6.1p2-33.30.13 |
openssh Red Hat:enterprise_linux:4::as | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh-askpass Red Hat:enterprise_linux:4::as | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh-askpass-gnome Red Hat:enterprise_linux:4::as | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh-clients Red Hat:enterprise_linux:4::as | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh-debuginfo Red Hat:enterprise_linux:4::as | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh-server Red Hat:enterprise_linux:4::as | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh Red Hat:enterprise_linux:4::desktop | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh-askpass Red Hat:enterprise_linux:4::desktop | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh-askpass-gnome Red Hat:enterprise_linux:4::desktop | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh-clients Red Hat:enterprise_linux:4::desktop | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh-debuginfo Red Hat:enterprise_linux:4::desktop | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh-server Red Hat:enterprise_linux:4::desktop | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh Red Hat:enterprise_linux:4::es | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh-askpass Red Hat:enterprise_linux:4::es | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh-askpass-gnome Red Hat:enterprise_linux:4::es | All versions | 0:3.9p1-8.RHEL4.17.1 |
openssh-clients Red Hat:enterprise_linux:4::es | All versions | 0:3.9p1-8.RHEL4.17.1 |
Products include OpenSSH.
How do I fix CVE-2006-5794?
Upgrade to a fixed version.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2006-5794 being exploited?
There is no known exploitation of CVE-2006-5794 in the wild and no public exploit code.
Other vulnerabilities in OpenSSH
Sources
Also known as DEBIAN-CVE-2006-5794, GHSA-5r9x-42xj-4x3r, RHSA-2006:0738.