Path Traversal in IBM Websphere Application Server Nd
CVE-2021-20517
IBM WebSphere Application Server Network Deployment 8.5 and 9.0 could allow a remote authenticated attacker to traverse directories. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to read and delete arbitrary files on the system. IBM X-Force ID: 198435.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.019 (78.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- IBM Websphere Application Server Nd — versions 8.5, 9.0
- IBM Websphere Application Server Nd
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.ibm.com/support/pages/node/6456955 (Patch, Vendor Advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/198435 (VDB Entry, vdb-entry, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-20517?
- CVE-2021-20517 is a high-severity vulnerability in IBM Websphere Application Server Nd, classified under Path Traversal. CVSS score: 8.8/10. Published 2021-06-07.
- How severe is CVE-2021-20517?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-20517 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.