On an F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.1, or 11.2.1-11.6.3.1 system configured in Appliance mode, the TMOS Shell (tmsh) may allow an administrative user to use the dig utility to gain unauthorized access to file system resources.
Published 2018-05-02 13:29:01
Updated 2020-08-24 17:37:01
Source F5 Networks
View at NVD,   CVE.org
Vulnerability category: Bypass

Exploit prediction scoring system (EPSS) score for CVE-2018-5520

0.06%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 24 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-5520

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
3.5
LOW AV:N/AC:M/Au:S/C:P/I:N/A:N
6.8
2.9
NIST
4.4
MEDIUM CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
0.7
3.6
NIST

CWE ids for CVE-2018-5520

  • The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-5520

Products affected by CVE-2018-5520

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