csaf_redhat - rhsa-2018

rhsa-2018_1125

Vulnerability from csaf_redhat

Published

2018-04-12 21:37

Modified

2024-11-05 20:27

Summary

Red Hat Security Advisory: python-paramiko security update

Notes

Topic

An update for python-paramiko is now available for Red Hat Enterprise Linux 6.4 Advanced Update Support, Red Hat Enterprise Linux 6.5 Advanced Update Support, Red Hat Enterprise Linux 6.6 Advanced Update Support, Red Hat Enterprise Linux 6.6 Telco Extended Update Support, and Red Hat Enterprise Linux 6.7 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details

The python-paramiko package provides a Python module that implements the SSH2 protocol for encrypted and authenticated connections to remote machines. Unlike SSL, the SSH2 protocol does not require hierarchical certificates signed by a powerful central authority. The protocol also includes the ability to open arbitrary channels to remote services across an encrypted tunnel. Security Fix(es): * python-paramiko: Authentication bypass in transport.py (CVE-2018-7750) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

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  "vulnerabilities": [
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      "cve": "CVE-2018-7750",
      "cwe": {
        "id": "CWE-287",
        "name": "Improper Authentication"
      },
      "discovery_date": "2018-03-16T00:00:00+00:00",
      "ids": [
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      "notes": [
        {
          "category": "description",
          "text": "It was found that when acting as an SSH server, paramiko did not properly check whether authentication is completed before processing other requests. A customized SSH client could use this to bypass authentication when accessing any resources controlled by paramiko.",
          "title": "Vulnerability description"
        },
        {
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          "text": "python-paramiko: Authentication bypass in transport.py",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This flaw is a user authentication bypass in the SSH Server functionality of paramiko (normally used by subclassing `paramiko.ServerInterface`). Where paramiko is used only for its client-side functionality (e.g. `paramiko.SSHClient`), the vulnerability is not exposed and thus cannot be exploited.\n\nThe following Red Hat products use paramiko only in client-side mode. Server side functionality is not used.\n\n* Red Hat Ceph Storage 2\n* Red Hat CloudForms 4\n* Red Hat Enterprise Linux 7\n* Red Hat Enterprise Virtualization\n* Red Hat Gluster Storage 3\n* Red Hat Openshift Container Platform\n* Red Hat Quick Cloud Installer\n* Red Hat Satellite 6\n* Red Hat Storage Console 2\n* Red Hat OpenStack Platform\n* Red Hat Update Infrastructure",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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            "6Server-6.7.EUS:python-paramiko-0:1.7.5-4.el6_7.noarch",
            "6Server-6.7.EUS:python-paramiko-0:1.7.5-4.el6_7.src"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2018:1125"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "6ComputeNode-6.7.EUS:python-paramiko-0:1.7.5-4.el6_7.noarch",
            "6ComputeNode-6.7.EUS:python-paramiko-0:1.7.5-4.el6_7.src",
            "6Server-6.4.AUS:python-paramiko-0:1.7.5-4.el6_4.noarch",
            "6Server-6.4.AUS:python-paramiko-0:1.7.5-4.el6_4.src",
            "6Server-6.5.AUS:python-paramiko-0:1.7.5-4.el6_5.noarch",
            "6Server-6.5.AUS:python-paramiko-0:1.7.5-4.el6_5.src",
            "6Server-6.6.AUS:python-paramiko-0:1.7.5-4.el6_6.noarch",
            "6Server-6.6.AUS:python-paramiko-0:1.7.5-4.el6_6.src",
            "6Server-6.6.TUS:python-paramiko-0:1.7.5-4.el6_6.noarch",
            "6Server-6.6.TUS:python-paramiko-0:1.7.5-4.el6_6.src",
            "6Server-6.7.EUS:python-paramiko-0:1.7.5-4.el6_7.noarch",
            "6Server-6.7.EUS:python-paramiko-0:1.7.5-4.el6_7.src"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Critical"
        }
      ],
      "title": "python-paramiko: Authentication bypass in transport.py"
    }
  ]
}

cve-2018-7750

Vulnerability from cvelistv5

Published

2018-03-13 18:00

Modified

2024-08-05 06:37

Severity ?

Summary

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.

References

▼	URL	Tags
	https://access.redhat.com/errata/RHSA-2018:1124	vendor-advisory, x_refsource_REDHAT
	https://www.exploit-db.com/exploits/45712/	exploit, x_refsource_EXPLOIT-DB
	https://github.com/paramiko/paramiko/issues/1175	x_refsource_CONFIRM
	https://access.redhat.com/errata/RHSA-2018:1125	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2018:1972	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2018:1274	vendor-advisory, x_refsource_REDHAT
	https://lists.debian.org/debian-lts-announce/2018/10/msg00018.html	mailing-list, x_refsource_MLIST
	https://usn.ubuntu.com/3603-2/	vendor-advisory, x_refsource_UBUNTU
	https://access.redhat.com/errata/RHSA-2018:0646	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2018:1213	vendor-advisory, x_refsource_REDHAT
	https://usn.ubuntu.com/3603-1/	vendor-advisory, x_refsource_UBUNTU
	https://access.redhat.com/errata/RHSA-2018:1525	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2018:1328	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2018:0591	vendor-advisory, x_refsource_REDHAT
	http://www.securityfocus.com/bid/103713	vdb-entry, x_refsource_BID
	https://github.com/paramiko/paramiko/commit/fa29bd8446c8eab237f5187d28787727b4610516	x_refsource_CONFIRM
	https://github.com/paramiko/paramiko/blob/master/sites/www/changelog.rst	x_refsource_CONFIRM
	https://lists.debian.org/debian-lts-announce/2021/12/msg00025.html	mailing-list, x_refsource_MLIST

Impacted products

▼	Vendor	Product
	n/a	n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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