Vulnerability Details : CVE-2019-13343
Potential exploit
Butor Portal before 1.0.27 is affected by a Path Traversal vulnerability leading to a pre-authentication arbitrary file download. Effectively, a remote anonymous user can download any file on servers running Butor Portal. WhiteLabelingServlet is responsible for this vulnerability. It does not properly sanitize user input on the theme t parameter before reusing it in a path. This path is then used without validation to fetch a file and return its raw content to the user via the /wl?t=../../...&h= substring followed by a filename.
Vulnerability category: Directory traversal
Products affected by CVE-2019-13343
- cpe:2.3:a:butor:portal:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-13343
0.55%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 65 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-13343
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
9.9
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L |
3.9
|
5.3
|
MITRE | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2019-13343
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-13343
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https://bitbucket.org/butor-team/portal/src/cd7055d33e194fcf530100ee1d8d13aa9cde230b/src/main/java/com/butor/portal/web/servlet/WhiteLabelingServlet.java?at=master
butor-team / portal / src / main / java / com / butor / portal / web / servlet / WhiteLabelingServlet.java — BitbucketExploit;Third Party Advisory
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https://bitbucket.org/account/user/butor-team/projects/PROJ
butor team / butor stack — BitbucketThird Party Advisory
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https://bitbucket.org/butor-team/portal/commits/cd7055d33e194fcf530100ee1d8d13aa9cde230b
butor-team / portal / commit / cd7055d33e19 — BitbucketPatch;Third Party Advisory
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https://www.gosecure.net/blog/2019/09/30/butor-portal-arbitrary-file-download-vulnerability-cve-2019-13343
Butor Portal Arbitrary File Download Vulnerability (CVE-2019-13343) | GoSecureExploit;Third Party Advisory
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https://bitbucket.org/butor-team/portal/commits/all
butor-team / portal — BitbucketThird Party Advisory
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