Path Traversal in Sensiolabs Symfony
CVE-2017-16654
An issue was discovered in Symfony before 2.7.38, 2.8.31, 3.2.14, 3.3.13, 3.4-BETA5, and 4.0-BETA5. The Intl component includes various bundle readers that are used to read resource bundles from the local filesystem. The read() methods of these classes use a path and a locale to determine the language bundle to retrieve. The locale argument value is commonly retrieved from untrusted user input (like a URL parameter). An attacker can use this argument to navigate to arbitrary directories via the dot-dot-slash attack, aka Directory Traversal.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.027 (85.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- Sensiolabs Symfony
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
References
- github.com/symfony/symfony/pull/24994 (Third Party Advisory, Issue Tracking)
- symfony.com/blog/cve-2017-16654-intl-bundle-readers-breaking-out-of-paths (Issue Tracking, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2019/03/msg00009.html (mailing-list, Third Party Advisory)
- www.debian.org/security/2018/dsa-4262 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-16654?
- CVE-2017-16654 is a high-severity vulnerability in Sensiolabs Symfony, classified under Path Traversal. CVSS score: 7.5/10. Published 2018-08-06.
- How severe is CVE-2017-16654?
- High severity. CVSS v3 base score is 7.5 out of 10.