Path Traversal in Broadcom Brocade Fabric Operating System Firmware
CVE-2023-27534
A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde (~) character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can exploit this flaw to bypass filtering or execute arbitrary code by crafting a path like /~2/foo while accessing a server with a specific user.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.022 (81.6th percentile) — read the EPSS interpretation.
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.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support@hackerone.com (Exploit, Third Party Advisory)
- support@hackerone.com (vendor-advisory, Mailing List, Third Party Advisory)
- support@hackerone.com (Third Party Advisory)
- support@hackerone.com (vendor-advisory, Third Party Advisory)
- support@hackerone.com (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-27534?
- CVE-2023-27534 is a high-severity vulnerability in Broadcom Brocade Fabric Operating System Firmware, classified under Path Traversal. CVSS score: 8.8/10. Published 2023-03-30.
- How severe is CVE-2023-27534?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2023-27534 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.