CVE-2020-15800: siemens scalance x-200 switch family (incl. siplus net variants) Heap-based Buffer Overflow

Vulnerability summary

CVE-2020-15800 is a critical (CVSS 9.8) Heap-based Buffer Overflow vulnerability in siemens scalance x-200 switch family (incl. siplus net variants). EPSS estimates a 1.67% chance of exploitation in the next 30 days, higher than 76.4% of scored vulnerabilities.

Timeline

1. 12-01-2021
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All versions < V5.2.5), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions < V5.5.0), SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions < V4.1.0). The webserver of the affected devices contains a vulnerability that may lead to a heap overflow condition. An attacker could cause this condition on the webserver by sending specially crafted requests. This could stop the webserver temporarily.

• 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.