October 29, 2013, Brandon Edmunds, Senior Security Consultant, Coalfire Labs
Image manipulation madness causes a near disaster for a popular web site.
It was an innocent plan, a common website molded together with text and images to make dreams come true. However, this dream was just short of turning into a real nightmare. Coalfire was asked to evaluate the security of this popular website. Upon evaluation, Coalfire discovered a frightening flaw in the way that the site hosted images. The web site allowed a user to change how wide or tall an image was by manipulating the relevant parameters in the URL. But to our horror, this feature could be tampered with for evil purposes.
Coalfire discovered that by changing image height or width parameters in the URL, someone could actually execute system commands on the hosting web server. Through a series of web requests plus taking advantage of this spooky flaw, we were able to get the hosting web server to call back on and spawn a reverse shell to our “evil” hacking box, allowing our testing team full control. From here, Coalfire owned the webserver that hosted not only the web site we were testing, but several other sites as well.
We were able to quickly disclose this flaw to the developers of the web site who in turn pushed out a patch within minutes. The nightmare was mitigated and hence turned into a happy ending as a result from our teams’ expertise along with the strong relationship that Coalfire strives to build with our clients.
Learn more about Coalfire Labs:
Vulnerability Scanning & Assessments
Read our other IT Security Horror Stories:
The 100 Million Dollar Getaway
The Ghosts Inside
Breaching a bank in 20 minutes
Past Horror Stories
Truth is SCARIER than Fiction Redux
Is your Network an Unsegmented Haunted House?
Digging your own grave with Default Credentials
Slow Network, Big Phish
The Case of the Phantom Blood Red Team
A Tale of Spooky Hosted Images
Ghost in the Machine
Tale of the Fake IT Rep
Truth is Scarier Than Fiction
The Case of the Phantom Technician
Brandon Edmunds — Senior Security Consultant, Coalfire Labs
Coalfire started in 2001 with a simple idea – cyber threats are increasing, compliance mandates are getting more complicated, and a well-designed cybersecurity program can help fuel your overall success.
Coalfire helps organizations comply with global financial, government, industry and healthcare mandates while helping build the IT infrastructure and security systems that will protect their business from security breaches and data theft. The company is a leading provider of IT advisory services for security in retail, payments, healthcare, financial services, higher education, hospitality, government and utilities.
The Coalfire Board of Directors provides invaluable guidance for the organization and reflects Coalfire’s dedication to achieving success for our customers.
The Executive Team is comprised of experienced senior leaders who oversee Coalfire’s key business units. Tom McAndrew, shown right is the Chief Executive Officer for Coalfire. He is recognized as one of the world’s leading cybersecurity experts in both the commercial and government sectors.
With a passion for quality, Coalfire uses a process-driven quality approach to improve the customer experience and deliver unparalleled results.
Created in honor of the late co-founder of Coalfire, the Richard E. Dakin Fund at The Denver Foundation is supporting scholarship programs at several universities for promising college students studying cybersecurity and related fields.
Security is a team game. If your organization values both independence and security, perhaps we should become partners.
The increased need for cyber security has become a common enterprise priority across the globe. However, industry requirements for effective cyber risk management are as distinct as the individual entities under fire. Enterprises and government organizations need more than an off-the-shelf audit to provide an effective threat assessment. They need industry- and organization-specific insights, tools and processes to protect digital assets and ensure compliance.
Coalfire can help cloud service providers prioritize the cyber risks to the company, and find the right cyber risk management and compliance efforts that keeps customer data secure, and helps differentiate products.
“Success” at a government entity looks different than at a commercial organization. Create cybersecurity solutions to support your mission goals with a team that understands your unique requirements.
The financial services industry was built upon security and privacy. As cyber-attacks become more sophisticated, a strong vault and a guard at the door won’t offer any protection against phishing, DDoS attacks and IT infrastructure breaches.
The continuum of care is a concept involving an integrated system of care that guides and tracks patients over time through a comprehensive array of health services spanning all levels of care. Interoperability is the central idea to this care continuum making it possible to have the right information at the right time for the right people to make the right decisions.
Maintaining network and data security in any large organization is a major challenge for information systems departments. However, in the higher education environment, the protection of IT assets and sensitive information must be balanced with the need for ‘openness’ and academic freedom; making this a more difficult and complex task.
When it comes to cyber threats, the hospitality industry is not a friendly place. Hotels and resorts have proven to be a favorite target for cyber criminals who are looking for high transaction volume, large databases and low barriers to entry.
The payments industry is undergoing rapid changes and unfortunately, an increasing risk for data breaches. Cyber criminals are growing increasingly businesslike, and payments leaders need to move quickly to cover their cyber risk.
The food and beverage industry is under attack from cyber criminals intent on stealing payment information. The food and beverage industry makes up the highest percentage of breach investigations, at nearly 73 percent, according to Visa.
The global retail industry has become the top target for cyber terrorists, and the impact of this onslaught has been staggering to merchants. To secure the complex IT infrastructure of a retail environment, merchants must embrace enterprise-wide cyber risk management practices that reduces risk, minimizes costs and provides security to their customers and their bottom line.
Private enterprises serving government and state agencies need to be upheld to the same information management practices and standards as the organizations they serve. Coalfire has over 16 years of experience helping companies navigate increasing complex governance and risk standards for public institutions and their IT vendors.
Technology innovations are enabling new methods for corporations and governments to operate and driving changes in consumer behavior. The companies delivering these technology products are facilitating business transformation that provides new operating models, increased efficiency and engagement with consumers as businesses seek a competitive advantage.
Cybersecurity has entered the list of the top five concerns for U.S. electric utilities, and with good reason. According to the Department of Homeland Security, attacks on the utilities industry are rising "at an alarming rate."
Cyber risk management, advisory, technology and compliance services. Manage risk and maximize return on investment to prevent data breaches and theft. Coalfire’s solutions are led by a team of industry experts that help enterprise organizations understand a wide range of compliance and risk management initiatives, which enables a consistent cybersecurity framework across the organization.
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