CVE-2018-17910: advantech webaccess Stack-based Buffer Overflow

Vulnerability summary

CVE-2018-17910 is a high (CVSS 9.3) Stack-based Buffer Overflow vulnerability in advantech webaccess. EPSS estimates a 5.22% chance of exploitation in the next 30 days, higher than 92.4% of scored vulnerabilities.

Timeline

1. 29-10-2018
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

Description

WebAccess Versions 8.3.2 and prior. The application fails to properly validate the length of user-supplied data, causing a buffer overflow condition that allows for arbitrary 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.