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CVE Vulnerabilities

CVE-2020-10762

Incorrect Permission Assignment for Critical Resource

Published: Nov 24, 2020 | Modified: Nov 21, 2024
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
2.1 LOW
AV:L/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
5.5 MODERATE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Ubuntu
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2020-10762
CWEhttps://cwe.mitre.org/data/definitions/732.html

An information-disclosure flaw was found in the way that gluster-block before 0.5.1 logs the output from gluster-block CLI operations. This includes recording passwords to the cmd_history.log file which is world-readable. This flaw allows local users to obtain sensitive information by reading the log file. The highest threat from this vulnerability is to data confidentiality.

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
Gluster-block Redhat * 0.5.1 (excluding)
Native Client for RHEL 7 for Red Hat Storage RedHat heketi-0:9.0.0-9.5.el7rhgs *
Red Hat Gluster Storage 3.5 for RHEL 7 RedHat gluster-block-0:0.2.1-36.2.el7rhgs *
Red Hat Gluster Storage 3.5 for RHEL 7 RedHat heketi-0:9.0.0-9.5.el7rhgs *
Red Hat Gluster Storage 3.5 for RHEL 7 RedHat tcmu-runner-0:1.2.0-32.2.el7rhgs *

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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