Vulnerabilities
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CVE Vulnerabilities

CVE-2017-5118

Incorrect Permission Assignment for Critical Resource

Published: Oct 27, 2017 | Modified: Nov 21, 2024
CVSS 3.x
4.3
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
6.5 MODERATE
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Ubuntu
MEDIUM
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2017-5118
CWEhttps://cwe.mitre.org/data/definitions/732.html

Blink in Google Chrome prior to 61.0.3163.79 for Mac, Windows, and Linux, and 61.0.3163.81 for Android, failed to correctly propagate CSP restrictions to javascript scheme pages, which allowed a remote attacker to bypass content security policy via a crafted HTML page.

Weakness

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

Affected Software

Name Vendor Start Version End Version
Chrome Google * 61.0.3163.79 (excluding)
Red Hat Enterprise Linux 6 Supplementary RedHat chromium-browser-0:61.0.3163.79-2.el6_9 *
Chromium-browser Ubuntu artful *
Chromium-browser Ubuntu bionic *
Chromium-browser Ubuntu cosmic *
Chromium-browser Ubuntu devel *
Chromium-browser Ubuntu trusty *
Chromium-browser Ubuntu upstream *
Chromium-browser Ubuntu xenial *
Chromium-browser Ubuntu zesty *
Oxide-qt Ubuntu artful *
Oxide-qt Ubuntu esm-infra/xenial *
Oxide-qt Ubuntu trusty *
Oxide-qt Ubuntu xenial *
Oxide-qt Ubuntu zesty *

Potential Mitigations

  • Run the code in a “jail” or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
  • OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
  • This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
  • Be careful to avoid CWE-243 and other weaknesses related to jails.

References

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