CVE-2015-5079

published 2018-02-28

CVE-2015-5079: Directory traversal vulnerability in widgets/logs.php in BlackCat CMS before 1.1.2 allows remote attackers to read arbitrary files via a .. (dot dot) in the dl…

Priority P2 61 high 7.5 CVSS 3.0

AV N AC L PR N UI N S U C H I N A N

EXPLOIT

Directory traversal vulnerability in widgets/logs.php in BlackCat CMS before 1.1.2 allows remote attackers to read arbitrary files via a .. (dot dot) in the dl parameter.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
blackcat-cms	blackcat_cms	< 1.1.2	1.1.2

Detection & IOCs extracted from sources · hover to see the quote

path /modules/blackcat/widgets/logs.php↗

url http://10.1.1.1/blackcat/modules/blackcat/widgets/logs.php?dl=../config.php↗

path /modules/blackcat/widgets/logs.php?dl=../↗

• → Monitor HTTP GET requests to /modules/blackcat/widgets/logs.php where the 'dl' query parameter contains directory traversal sequences (e.g., '../' or '..') to detect exploitation of CVE-2015-5079. ↗
• → Detect requests to logs.php with the Accept-Encoding: gzip header combined with a traversal 'dl' parameter, matching the PoC curl command pattern used by attackers. ↗

• · The traversal is constrained to start from the CAT_PATH/temp/ base directory before the sanitizePath function is applied; however, the sanitization is insufficient to prevent '../' escape sequences, so files accessible relative to that base path (including config.php) can be retrieved. ↗
• · The vulnerability affects BlackCat CMS versions before 1.1.2; only installations running v1.1.1 or earlier on the default module path are exploitable. ↗

CVSS provenance

nvd v3.0 7.5 HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

nvd v2.0 5.0 MEDIUM AV:N/AC:L/Au:N/C:P/I:N/A:N

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