CVE-2015-5352

Description

The x11_open_helper function in channels.c in ssh in OpenSSH before 6.9, when ForwardX11Trusted mode is not used, lacks a check of the refusal deadline for X connections, which makes it easier for remote attackers to bypass intended access restrictions via a connection outside of the permitted time window.

Scores

Weaknesses (CWE)

• CWE-264

European references

• ENISA EUVD · EUVD-2015-5308
• GCVE · GCVE-0-2015-5352

CERT-FR advisories

• CERTFR-2022-AVI-267 — Multiples vulnérabilités dans Juniper Networks Junos Space · cert.ssi.gouv.fr
• CERTFR-2022-AVI-1094 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
• CERTFR-2017-AVI-022 — Multiples vulnérabilités dans Juniper Network and Security Manager · cert.ssi.gouv.fr
• CERTFR-2017-AVI-012 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
• CERTFR-2015-AVI-282 — Multiples vulnérabilités dans OpenSSH · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

• cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* ≤ 6.8

Affected products

References

• http://www.ubuntu.com/usn/USN-2710-2
• http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
• https://security.netapp.com/advisory/ntap-20181023-0001/
• https://security.gentoo.org/glsa/201512-04
• https://anongit.mindrot.org/openssh.git/commit/?h=V_6_9&id=1bf477d3cdf1a864646d59820878783d42357a1d
• http://openwall.com/lists/oss-security/2015/07/01/10
• http://rhn.redhat.com/errata/RHSA-2016-0741.html
• http://www.securityfocus.com/bid/75525
• http://www.securitytracker.com/id/1032797
• http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
• http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html
• http://www.openssh.com/txt/release-6.9
• https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
• http://www.ubuntu.com/usn/USN-2710-1
• https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

Sources