Vulnerability CVE-2019-6616

Vulnerability Name:

CVE-2019-6616 (CCN-160581)

Assigned:

2019-05-01

Published:

2019-05-01

Updated:

2023-02-16

Summary:

F5 BIG-IP could allow a local authenticated attacker to bypass security restrictions, caused by improper file permission in TMOS Shell. By sending a specially-crafted request, an authenticated attacker could exploit this vulnerability to overwrite critical system files and bypass whitelist / blocklist restrictions.

CVSS v3 Severity:

7.2 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
6.3 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): High User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

6.7 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
5.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): High User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

6.5 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2019-6616

Source: f5sirt@f5.com
Type: Broken Link, Third Party Advisory, VDB Entry
f5sirt@f5.com

Source: XF
Type: UNKNOWN
f5-cve20196616-sec-bypass(160581)

Source: CCN
Type: F5 Security Advisory K82814400
Appliance mode tmsh vulnerability CVE-2019-6616

Source: f5sirt@f5.com
Type: Vendor Advisory
f5sirt@f5.com

Vulnerable Configuration:

Configuration CCN 1:

cpe:/a:f5:big-ip:12.1.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip:13.0.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip:11.6.3:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip:14.0.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip:12.1.4:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip:11.6.1:*:*:*:*:*:*:*

Denotes that component is vulnerable

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