Phoenix Contact FL SWITCH 3xxx/FL SWITCH 4xxx/FL SWITCH 48xx up to 1.33 Cookie memory corruption

Summaryinfo

A vulnerability classified as critical has been found in Phoenix Contact FL SWITCH 3xxx, FL SWITCH 4xxx and FL SWITCH 48xx up to 1.33. The impacted element is an unknown function of the component Cookie Handler. This manipulation causes memory corruption. The identification of this vulnerability is CVE-2018-10731. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in Phoenix Contact FL SWITCH 3xxx, FL SWITCH 4xxx and FL SWITCH 48xx up to 1.33 and classified as critical. Affected by this vulnerability is some unknown processing of the component Cookie Handler. 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 confidentiality, integrity, and availability. The summary by CVE is:

All Phoenix Contact managed FL SWITCH 3xxx, 4xxx, 48xx products running firmware version 1.0 to 1.33 are prone to buffer overflows when handling very large cookies (a different vulnerability than CVE-2018-10728).

The bug was discovered 05/17/2018. The weakness was shared 05/17/2018 with Positive Technologies (Website). The advisory is shared at cert.vde.com. This vulnerability is known as CVE-2018-10731 since 05/04/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 104231†). The entries VDB-117947, VDB-117946 and VDB-117948 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Phoenix Contact

Name

• FL SWITCH 3xxx
• FL SWITCH 4xxx
• FL SWITCH 48xx

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30
• 1.31
• 1.32
• 1.33

License

• commercial

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

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Sourcesinfo

Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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