Rule Category

POLICY-OTHER --

Alert Message

POLICY-OTHER file URI scheme attempt

Rule Explanation

This rule searches for `file://` in the file_data buffer and alerts if the pattern is found. Apple Safari before 5.1.1 did not enforce an intended policy for 'file:' URLs, which allows remote attackers to execute arbitrary code via a crafted web site.

What To Look For

This rule alerts when a URI scheme containing the 'file://' prefix is detected.

Known Usage

No public information

False Positives

Known false positives, with the described conditions

This rule does not account for valid use cases of the 'file://' URI scheme.

Contributors

Cisco Talos Intelligence Group

Rule Groups

No rule groups

CVE

Additional Links

Rule Vulnerability

Memory Corruption

Memory Corruption is any vulnerability that allows the modification of the content of memory locations in a way not intended by the developer. Memory corruption results are inconsistent; they could lead to fatal errors and system crashes or data leakage; some have no effect at all.

CVE Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.
CVE-2011-3230
Loading description

MITRE ATT&CK Framework

Tactic: Initial Access

Technique: Drive-by Compromise

For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org