CVE-2013-6227

published 2014-12-27

CVE-2013-6227: Unrestricted file upload vulnerability in plugins/editor.zoho/agent/save_zoho.php in the Zoho plugin in Pydio (formerly AjaXplorer) before 5.0.4 allows remote…

Priority P2 58 high 7.5 CVSS 2.0

AV N AC L Au N C P I P A P

EXPLOIT

Unrestricted file upload vulnerability in plugins/editor.zoho/agent/save_zoho.php in the Zoho plugin in Pydio (formerly AjaXplorer) before 5.0.4 allows remote attackers to execute arbitrary code by uploading an executable file, and then accessing this file at a location specified by the format parameter of a move operation.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
ajaxplorer	ajaxplorer	<= 5.0.3	—
pydio	pydio	<= 5.0.3	—

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

path /plugins/editor.zoho/agent/save_zoho.php↗

path /plugins/editor.zoho/agent/files↗

url http://<host>/plugins/editor.zoho/agent/save_zoho.php?ajxp_action=get_file&name=../../../../../../../../etc/passwd↗

url http://<host>/plugins/editor.zoho/agent/save_zoho.php?id=&format=./../../../data/files/test.html↗

command curl -F 'content=@<file>;type=<mime>;filename=\"<file>\"' "http://<host>/plugins/editor.zoho/agent/save_zoho.php?id=<id>&format=<traversal_path>"↗

command curl "http://<host>/plugins/editor.zoho/agent/save_zoho.php?ajxp_action=get_file&name=<traversal_path>"↗

• → Monitor HTTP requests to save_zoho.php containing directory traversal sequences (e.g., '../') in the 'format' parameter, indicating an attempted arbitrary file upload via path traversal. ↗
• → Alert on HTTP GET/POST requests to save_zoho.php with the query parameter 'ajxp_action=get_file' combined with directory traversal sequences in the 'name' parameter, indicating arbitrary file read/delete exploitation. ↗
• → Detect multipart/form-data POST requests to /plugins/editor.zoho/agent/save_zoho.php with executable file content (e.g., PHP webshells) as the 'content' field, which may indicate a webshell upload attempt. ↗
• → Watch for unexpected new files appearing under /data/files/ that were not created through normal application workflows, especially files with executable extensions, as the default drop location for traversal-based uploads. ↗

• · The directory traversal file upload (Option 1 / 'format' parameter) requires the attacker to have write permission on the target directory. Exploitation is limited to paths writable by the web server process user. ↗
• · The arbitrary file read via 'ajxp_action=get_file' is destructive: the retrieved file is permanently deleted (unlinked) after being read, if the file is writable by the web server process. ↗

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