CVE-2018-7750

Aliases:GHSA-232r-66cg-79pxPYSEC-2018-19
Advisory lineage Upstream: 0 Downstream: 22
Modified
Published: 13 Mar 2018, 18:00
Last modified:05 Aug 2024, 06:37

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (nvd)
EPSS Score
13.83% MEDIUM
14% probability -6.64%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

13 Mar 2018, 18:00
Published
Vulnerability first disclosed
05 Aug 2024, 06:37
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v4.0•CRITICAL•Score: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 13.83%• Percentile: 94%

Techniques & Countermeasures

  • CWE-287•Improper Authentication

    When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Systems

  • debian•debian_linux

    8.0 | 9.0

  • paramiko•paramiko

    < 1.17.6 | ≥ 1.18.0, < 1.18.5 | ≥ 2.0.0, < 2.0.8 | ≥ 2.1.0, < 2.1.5 | ≥ 2.2.0, < 2.2.3 | ≥ 2.3.0, < 2.3.2 | 2.4.0

  • PyPI•paramiko

    ≥ 2.0.0, < 2.0.8 | ≥ 2.1.0, < 2.1.5 | ≥ 2.2.0, < 2.2.3 | ≥ 2.3.0, < 2.3.2 | ≥ 2.4.0, < 2.4.1 | < 1.17.6 | < fa29bd8446c8eab237f5187d28787727b4610516 | ≥ 1.18.0, < 1.18.5

  • redhat•ansible_engine

    2.0 | 2.4

  • redhat•cloudforms

    4.5 | 4.6

  • redhat•enterprise_linux_desktop

    6.0

  • redhat•enterprise_linux_server

    6.0 | 7.0

  • redhat•enterprise_linux_server_aus

    6.4 | 6.5 | 6.6

  • redhat•enterprise_linux_server_eus

    6.7

  • redhat•enterprise_linux_server_tus

    6.6

  • redhat•enterprise_linux_workstation

    6.0

  • redhat•virtualization

    4.1

References (28)