F5 BIG-IP up to 11.2.1/11.5.4/11.6.1/12.1.2 Traffic Management Microkernel memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
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4.7 | $0-$5k | 0.00 |
A vulnerability was found in F5 BIG-IP up to 11.2.1/11.5.4/11.6.1/12.1.2 (Firewall Software). It has been declared as problematic. This vulnerability affects an unknown code block of the component Traffic Management Microkernel. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect availability. CVE summarizes:
In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, Websafe software version 12.0.0 to 12.1.2, 11.6.0 to 11.6.1, 11.4.0 to 11.5.4, 11.2.1, in some cases TMM may crash when processing TCP traffic. This vulnerability affects TMM via a virtual server configured with TCP profile. Traffic processing is disrupted while Traffic Management Microkernel (TMM) restarts. If the affected BIG-IP system is configured to be part of a device group, it will trigger a failover to the peer device.
The bug was discovered 10/27/2017. The weakness was released 10/27/2017 (Website). The advisory is shared for download at support.f5.com. This vulnerability was named CVE-2017-6162 since 02/21/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 104189 (F5 Networks BIG-IP : TMM vulnerability (K13421245)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family F5 Networks Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370633 (F5 BIG-IP TMM Denial Of Service Vulnerability (K13421245)).
Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (104189). Entries connected to this vulnerability are available at 108737, 108735, 108734 and 108733.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
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CVSSv3
VulDB Meta Base Score: 4.8VulDB Meta Temp Score: 4.7
VulDB Base Score: 3.7
VulDB Temp Score: 3.6
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NVD Base Score: 5.9
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CVSSv2
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Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
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Nessus ID: 104189
Nessus Name: F5 Networks BIG-IP : TMM vulnerability (K13421245)
Nessus File: 🔍
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
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Countermeasures
Recommended: UpgradeStatus: 🔍
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Timeline
02/21/2017 🔍10/26/2017 🔍
10/26/2017 🔍
10/27/2017 🔍
10/27/2017 🔍
10/27/2017 🔍
10/27/2017 🔍
10/28/2017 🔍
01/05/2023 🔍
Sources
Vendor: f5.comAdvisory: K13421245
Status: Not defined
Confirmation: 🔍
CVE: CVE-2017-6162 (🔍)
SecurityTracker: 1039673
SecurityFocus: 101635 - Multiple F5 BIG-IP Products CVE-2017-6162 Denial of Service Vulnerability
See also: 🔍
Entry
Created: 10/28/2017 10:36Updated: 01/05/2023 09:26
Changes: 10/28/2017 10:36 (68), 12/01/2019 15:54 (6), 01/21/2021 07:50 (3), 01/05/2023 09:26 (3)
Complete: 🔍
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