NetWeaver - Path Traversal (CVE-2017-12637)

CVE-2017-12637 is a directory traversal vulnerability affecting SAP NetWeaver Application Server Java, allowing remote attackers to read arbitrary files through crafted requests.

CrowdSec has been tracking this vulnerability and its exploits since 26th of March 2025.

Data from the CrowdSec community indicates that exploitation of CVE-2017-12637 is highly selective and intelligence-driven. Threat actors use advanced reconnaissance and carefully choose their targets, often as part of sophisticated campaigns or advanced persistent threat operations. Data from the CrowdSec community also indicates a gradual decrease in attacks targeting CVE-2017-12637. While still present in the wild, exploitation levels have dropped noticeably week-over-week. This may signal that the vulnerability is becoming less relevant or that defenses are improving fast enough for attackers to lose interest.

Attempts to exploit this vulnerability typically focus on URLs under /scheduler/ui/js/ffffffffbca41eb4/uiutiljavascriptjs containing traversal sequences.