Web Login Bruteforce in Symantec Endpoint Protection Manager 12.1.4023.4080 Jul 22 2014 11:39AM
audit1 a2secure com
We discovered a vulnerability in the Symantec Endpoint Protection Manager web application.

Vulnerability Type: Login Bruteforce

Original Release: June 20, 2014

Discovered by:
Security Team - A2SECURE
Artëm Tsvetkov atsvetkov (at) a2secure (dot) com [email concealed]
Sisco Barrera sbarrera (at) a2secure (dot) com [email concealed]
Andrea Bodei abodei (at) a2secure (dot) com [email concealed]

Products and affected versions:

Company: A2SECURE - España
A2Secure Website: http://www.a2secure.com
Vendor Website: http://www.symantec.com
Application Website: http://www.symantec.com/endpoint-protection


Symantec Endpoint Protection is an endpoint security solution created through a layered approach to defense. With unique, layered technology, it detects and removes malware. Derived from Symantec?s global intelligence network, it enables faster scan, more accurate detection, and higher performance while utilizing fewer resources. With single management console, Symantec Endpoint Protection provides advance protection across multiple platforms both physical and virtual.

Vulnerability Details

Bruteforce attacks consist in an attacker configuring predetermined values, making requests to a server using those values, and then analyzing the response. For the sake of efficiency, an attacker may use a dictionary attack (with or without mutations) or a traditional brute-force attack (with given classes of characters e.g.: alphanumerical, special, case (in)sensitive). Considering a given method, number of tries, efficiency of the system which conducts the attack, and estimated efficiency of the system which is attacked the attacker is able to calculate approximately how long it will take to submit all chosen predetermined values.

Symantec Endpoint Protection Manager web login should implement bruteforce protection, such as one-time tokens, account lockout, IP blacklist, or similar.

Proof of Concept

The user login form does not prevent automated login attempts using a CAPTCHA, and is therefore vulnerable to bruteforce attacks.

Domain: https://localhost:8443
Method: POST
Path: /console/apps/sepm
Parameter: SEPMPasswordField_5454179
Payload: wordlist of passwords

Credits / Author

Artëm Tsvetkov


All information is provided without warranty. The intent is to provide information to secure infrastructure and/or systems, not to be able to attack or damage. Therefore A2Secure shall not be liable for any direct or indirect damages that might be caused by using this information.

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