Browse Definitions :
Definition

software attack surface

The software attack surface is the complete profile of all functions in any code running in a given system that are available to an unauthenticated user.

The more surface there is, the better the chance an attacker or a piece of malware can use various exploits to gain access and run code on the target machine. The software attack surface is particularly at risk in the case of Web applications, which expose the coding to the Internet.

Flawed functions may lead to the compromise of an entire network or other system by allowing an unverified user -- who may be a hacker or a corporate spy -- to steal data or gain further access, perhaps  elevating privileges to administrator level. Individual functions with security flaws can be considered attack vectors; those that may be exploited to gain further access can be seen as vulnerabilities.

 Another consideration in software attack surface is insider threats. Users that authenticate with valid credentials may be able to access unprotected data beyond their authorization levels if access controls are loosely implemented.

Because any running code may have exploitable vulnerabilities, one of the simplest ways to limit the software attack surface is to reduce the amount of code being run at any given time. If a program is not being used or if other installed software can perform the same task, it should be eliminated. Antivirus, hardware and software firewalls can help block access to existing vulnerabilities; operating system and application updates sometimes patch these weaknesses. However, it is better for overall security to minimize the number of vulnerabilities to begin with. To that end, developers are increasingly considering attack vectors in their software design.

Because many attack approaches exploit a combination of attack surface types to gain access to desired resources, a comprehensive attack surface analysis is crucial to proper set up of breach detection systems (BDS), firewall, intrusion prevention systems, data policy and other security measures. Tools available to help guide that analysis include WebInspect, Microsoft attack surface analyzer and CORE Impact.

See also: network attack surface, physical attack surface, social engineering attack surface

This was last updated in January 2015

Continue Reading About software attack surface

SearchCompliance
  • OPSEC (operations security)

    OPSEC (operations security) is a security and risk management process and strategy that classifies information, then determines ...

  • smart contract

    A smart contract is a decentralized application that executes business logic in response to events.

  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

SearchSecurity
  • threat modeling

    Threat modeling is a procedure for optimizing application, system or business process security by identifying objectives and ...

  • distributed denial-of-service (DDoS) attack

    A distributed denial-of-service (DDoS) attack is one in which multiple compromised computer systems attack a target, such as a ...

  • social engineering

    Social engineering is an attack vector that relies heavily on human interaction and often involves manipulating people into ...

SearchHealthIT
SearchDisasterRecovery
  • change control

    Change control is a systematic approach to managing all changes made to a product or system.

  • disaster recovery (DR)

    Disaster recovery (DR) is an organization's ability to respond to and recover from an event that affects business operations.

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

SearchStorage
  • bare-metal cloud

    Bare-metal cloud is a public cloud service that offers dedicated hardware resources without any installed operating systems or ...

  • race condition

    A race condition is an undesirable situation that occurs when a device or system attempts to perform two or more operations at ...

  • storage security

    Storage security is the group of parameters and settings that make storage resources available to authorized users and trusted ...

Close