Omron CX-One Project File Parser memory corruption

Summaryinfo

A vulnerability identified as critical has been detected in Omron CX-One, CX-Flnet, CX-Protocol, CX-Programmer and CX-Server. This issue affects some unknown processing of the component Project File Parser. Performing a manipulation results in memory corruption. This vulnerability is reported as CVE-2018-7514. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in Omron CX-One, CX-Flnet, CX-Protocol, CX-Programmer and CX-Server. This affects some unknown functionality of the component Project File Parser. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Parsing malformed project files in Omron CX-One versions 4.42 and prior, including the following applications: CX-FLnet versions 1.00 and prior, CX-Protocol versions 1.992 and prior, CX-Programmer versions 9.65 and prior, CX-Server versions 5.0.22 and prior, Network Configurator versions 3.63 and prior, and Switch Box Utility versions 1.68 and prior, may cause a stack-based buffer overflow.

The bug was discovered 04/10/2018. The weakness was disclosed 04/17/2018 (Website). It is possible to read the advisory at ics-cert.us-cert.gov. This vulnerability is uniquely identified as CVE-2018-7514 since 02/26/2018. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k.

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

The entries VDB-116308 and VDB-116314 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• SCADA Software

Vendor

• Omron

Name

• CX-Flnet
• CX-One
• CX-Programmer
• CX-Protocol
• CX-Server

License

• commercial

CPE 2.3info

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CPE 2.2info

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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