Apache log4net versions before 2.0.10 do not disable XML external entities when parsing log4net configuration files. This allows for XXE-ba…
Apache log4net versions before 2.0.10 do not disable XML external entities when parsing log4net configuration files. This allows for XXE-based attacks in applications that accept attacker-controlled log4net configuration files.
The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.
https://cwe.mitre.org/data/definitions/611.html →Open in CWE collection →This attack takes advantage of the entity replacement property of certain data serialization languages (e.g., XML, YAML, etc.) where the value of the replacement is a URI. A well-crafted file could have the entity refer to a URI that consumes a large amount of resources to create a denial of service condition. This can cause the system to either freeze, crash, or execute arbitrary code depending on the URI.
https://capec.mitre.org/data/definitions/221.html →Open in CAPEC collection →| Product | Vendor | Status |
|---|---|---|
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| log4net | Tracked | |
| application_testing_suite | * | Tracked |