Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2017-1000134

Incorrect Permission Assignment for Critical Resource

Published: Nov 03, 2017 | Modified: Nov 21, 2024
CVSS 3.x
8.1
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS 2.x
6.5 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2017-1000134
CWEhttps://cwe.mitre.org/data/definitions/732.html

Mahara 1.8 before 1.8.6 and 1.9 before 1.9.4 and 1.10 before 1.10.1 and 15.04 before 15.04.0 are vulnerable because group members can lose access to the group files they uploaded if another group member changes the access permissions on them.

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
Mahara Mahara 1.8-rc1 (including) 1.8-rc1 (including)
Mahara Mahara 1.8-rc2 (including) 1.8-rc2 (including)
Mahara Mahara 1.8.0 (including) 1.8.0 (including)
Mahara Mahara 1.8.1 (including) 1.8.1 (including)
Mahara Mahara 1.8.2 (including) 1.8.2 (including)
Mahara Mahara 1.8.3 (including) 1.8.3 (including)
Mahara Mahara 1.8.4 (including) 1.8.4 (including)
Mahara Mahara 1.8.5 (including) 1.8.5 (including)

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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