CVE-2018-15473
What it is
OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.
At a glance
- Exploitability
- Can be exploited over the network without logging in. Limited direct impact.
- Exploit odds
- 98.7% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 98.7% in the next 30 days (EPSS).
- Severity: 5.3 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 98.7% · EPSS, next 30 days
- Weakness
- CWE-362 · Race condition
- Record status
- Modified
Affected
- Openbsd OpenSSH ≤ 7.7
- Debian Linux 8.0
- Debian Linux 9.0
- Redhat Enterprise Linux Desktop 6.0
- Redhat Enterprise Linux Desktop 7.0
- Redhat Enterprise Linux Server 6.0
- Redhat Enterprise Linux Server 7.0
- Redhat Enterprise Linux Workstation 6.0
Attack profile CVSS 3.1 · 5.3
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2018-15473.md and follow it. Check whether this project is affected by CVE-2018-15473. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://www.openwall.com/lists/oss-security/2018/08/15/5
- http://www.securitytracker.com/id/1041487
- https://bugs.debian.org/906236
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://github.com/openbsd/src/commit/779974d35b4859c07bc3cb8a12c74b43b0a7d1e0
- https://www.oracle.com/security-alerts/cpujan2020.html
- http://www.openwall.com/lists/oss-security/2018/08/15/5
- http://www.securitytracker.com/id/1041487
- https://bugs.debian.org/906236
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
References
- http://www.openwall.com/lists/oss-security/2018/08/15/5
- http://www.securityfocus.com/bid/105140
- http://www.securitytracker.com/id/1041487
- https://access.redhat.com/errata/RHSA-2019:0711
- https://access.redhat.com/errata/RHSA-2019:2143
- https://bugs.debian.org/906236
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://github.com/openbsd/src/commit/779974d35b4859c07bc3cb8a12c74b43b0a7d1e0
- https://lists.debian.org/debian-lts-announce/2018/08/msg00022.html
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0011
- https://security.gentoo.org/glsa/201810-03
- https://security.netapp.com/advisory/ntap-20181101-0001/
- https://usn.ubuntu.com/3809-1/
- https://www.debian.org/security/2018/dsa-4280
- https://www.exploit-db.com/exploits/45210/
- https://www.exploit-db.com/exploits/45233/
- https://www.exploit-db.com/exploits/45939/
- https://www.oracle.com/security-alerts/cpujan2020.html
- http://www.openwall.com/lists/oss-security/2018/08/15/5
- http://www.securityfocus.com/bid/105140
- http://www.securitytracker.com/id/1041487
- https://access.redhat.com/errata/RHSA-2019:0711
- https://access.redhat.com/errata/RHSA-2019:2143
- https://bugs.debian.org/906236
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf