CVE-2018-8845: advantech webaccess Heap-based Buffer Overflow

Vulnerability summary

CVE-2018-8845 is a critical (CVSS 9.8) Heap-based Buffer Overflow vulnerability in advantech webaccess. EPSS estimates a 5.61% chance of exploitation in the next 30 days, higher than 92.8% of scored vulnerabilities.

Timeline

1. 15-05-2018
   PublishedVulnerability first disclosed.
2. 17-09-2024
   Last modifiedVulnerability information updated.

Description

In Advantech WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versions V.2.0.15 and prior, WebAccess Scada Node versions prior to 8.3.1, and WebAccess/NMS 2.0.3 and prior, a heap-based buffer overflow vulnerability has been identified, which may allow an attacker to execute arbitrary code.

• CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.