CVE-2018-8840: ics-cert schneider electric indusoft web studio and intouch machine edition Stack-based Buffer Overflow

Vulnerability summary

CVE-2018-8840 is a high (CVSS 10.0) Stack-based Buffer Overflow vulnerability in ics-cert schneider electric indusoft web studio and intouch machine edition. EPSS estimates a 8.63% chance of exploitation in the next 30 days, higher than 95% of scored vulnerabilities.

Timeline

1. 18-04-2018
   PublishedVulnerability first disclosed.
2. 16-09-2024
   Last modifiedVulnerability information updated.

Description

A remote attacker could send a carefully crafted packet in InduSoft Web Studio v8.1 and prior versions, and/or InTouch Machine Edition 2017 v8.1 and prior versions during a tag, alarm, or event related action such as read and write, which may allow remote code execution.

• CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.