Home > CAPEC List > CAPEC-650: Upload a Web Shell to a Web Server (Version 3.9)

CAPEC-650: Upload a Web Shell to a Web Server

Attack Pattern ID: 650
Abstraction: Detailed
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Description
By exploiting insufficient permissions, it is possible to upload a web shell to a web server in such a way that it can be executed remotely. This shell can have various capabilities, thereby acting as a "gateway" to the underlying web server. The shell might execute at the higher permission level of the web server, providing the ability the execute malicious code at elevated levels.
Typical Severity

High

Relationships
Section HelpThis table shows the other attack patterns and high level categories that are related to this attack pattern. These relationships are defined as ChildOf and ParentOf, and give insight to similar items that may exist at higher and lower levels of abstraction. In addition, relationships such as CanFollow, PeerOf, and CanAlsoBe are defined to show similar attack patterns that the user may want to explore.
NatureTypeIDName
ChildOfStandard Attack PatternStandard Attack Pattern - A standard level attack pattern in CAPEC is focused on a specific methodology or technique used in an attack. It is often seen as a singular piece of a fully executed attack. A standard attack pattern is meant to provide sufficient details to understand the specific technique and how it attempts to accomplish a desired goal. A standard level attack pattern is a specific type of a more abstract meta level attack pattern.17Using Malicious Files
Section HelpThis table shows the views that this attack pattern belongs to and top level categories within that view.
Prerequisites
The web server is susceptible to one of the various web application exploits that allows for uploading a shell file.
Consequences
Section HelpThis table specifies different individual consequences associated with the attack pattern. The Scope identifies the security property that is violated, while the Impact describes the negative technical impact that arises if an adversary succeeds in their attack. The Likelihood provides information about how likely the specific consequence is expected to be seen relative to the other consequences in the list. For example, there may be high likelihood that a pattern will be used to achieve a certain impact, but a low likelihood that it will be exploited to achieve a different impact.
ScopeImpactLikelihood
Confidentiality
Read Data
Confidentiality
Access Control
Authorization
Gain Privileges
Confidentiality
Integrity
Availability
Execute Unauthorized Commands
Mitigations
Make sure your web server is up-to-date with all patches to protect against known vulnerabilities.
Ensure that the file permissions in directories on the web server from which files can be execute is set to the "least privilege" settings, and that those directories contents is controlled by an allowlist.
Taxonomy Mappings
Section HelpCAPEC mappings to ATT&CK techniques leverage an inheritance model to streamline and minimize direct CAPEC/ATT&CK mappings. Inheritance of a mapping is indicated by text stating that the parent CAPEC has relevant ATT&CK mappings. Note that the ATT&CK Enterprise Framework does not use an inheritance model as part of the mapping to CAPEC.
Relevant to the ATT&CK taxonomy mapping (also see parent)
Entry IDEntry Name
1505.003 Server Software Component:Web Shell
Content History
Submissions
Submission DateSubmitterOrganization
2018年05月31日
(Version 2.11)
CAPEC Content TeamThe MITRE Corporation
Modifications
Modification DateModifierOrganization
2019年04月04日
(Version 3.1)
CAPEC Content TeamThe MITRE Corporation
Updated Related_Weaknesses
2020年07月30日
(Version 3.3)
CAPEC Content TeamThe MITRE Corporation
Updated Mitigations, Taxonomy_Mappings
2020年12月17日
(Version 3.4)
CAPEC Content TeamThe MITRE Corporation
Updated Mitigations
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Page Last Updated or Reviewed: July 31, 2018

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