CVE-2018-7750
What it is
transport.py in the SSH server implementation of Paramiko before 1.17.6, 1.18.x before 1.18.5, 2.0.x before 2.0.8, 2.1.x before 2.1.5, 2.2.x before 2.2.3, 2.3.x before 2.3.2, and 2.4.x before 2.4.1 does not properly check whether authentication is completed before processing other requests, as demonstrated by channel-open. A customized SSH client can simply skip the authentication step.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 27.1% 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: 27.1% in the next 30 days (EPSS).
- Severity: 9.8 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 27.1% · EPSS, next 30 days
- Weakness
- CWE-287 · Improper authentication
- Record status
- Modified
Affected
- Paramiko < 1.17.6
- Paramiko < 1.18.5
- Paramiko < 2.0.8
- Paramiko < 2.1.5
- Paramiko < 2.2.3
- Paramiko < 2.3.2
- Paramiko 2.4.0
- Redhat Ansible Engine 2.0
Attack profile CVSS 3.1 · 9.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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-2018-7750.md and follow it. Check whether this project is affected by CVE-2018-7750. 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
- https://github.com/paramiko/paramiko/commit/fa29bd8446c8eab237f5187d28787727b4610516
- https://github.com/paramiko/paramiko/commit/fa29bd8446c8eab237f5187d28787727b4610516
References
- http://www.securityfocus.com/bid/103713
- https://access.redhat.com/errata/RHSA-2018:0591
- https://access.redhat.com/errata/RHSA-2018:0646
- https://access.redhat.com/errata/RHSA-2018:1124
- https://access.redhat.com/errata/RHSA-2018:1125
- https://access.redhat.com/errata/RHSA-2018:1213
- https://access.redhat.com/errata/RHSA-2018:1274
- https://access.redhat.com/errata/RHSA-2018:1328
- https://access.redhat.com/errata/RHSA-2018:1525
- https://access.redhat.com/errata/RHSA-2018:1972
- https://github.com/paramiko/paramiko/blob/master/sites/www/changelog.rst
- https://github.com/paramiko/paramiko/commit/fa29bd8446c8eab237f5187d28787727b4610516
- https://github.com/paramiko/paramiko/issues/1175
- https://lists.debian.org/debian-lts-announce/2018/10/msg00018.html
- https://lists.debian.org/debian-lts-announce/2021/12/msg00025.html
- https://usn.ubuntu.com/3603-1/
- https://usn.ubuntu.com/3603-2/
- https://www.exploit-db.com/exploits/45712/
- http://www.securityfocus.com/bid/103713
- https://access.redhat.com/errata/RHSA-2018:0591
- https://access.redhat.com/errata/RHSA-2018:0646
- https://access.redhat.com/errata/RHSA-2018:1124
- https://access.redhat.com/errata/RHSA-2018:1125
- https://access.redhat.com/errata/RHSA-2018:1213
- https://access.redhat.com/errata/RHSA-2018:1274