Busybox: cpio hardlink target not sanitized under feature_path_traversal_protection
6.3 medium
Medium (6.3) in red hat.
A flaw was found in BusyBox. When extracting files using the cpio utility with path traversal protection enabled, hardlink target paths are not properly sanitized. By tricking a user or automated process into extracting a crafted archive, an attacker can create hardlinks that point to files outside the intended extraction directory. This issue may allow an attacker to modify or overwrite arbitrary files outside the target directory during subsequent extraction operations.
Severity
CVSS 3.1
6.3 medium
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE
CWE-59Improper Link Resolution Before File Access (Link Following)
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Affected
red hat:red hat enterprise linux 6
red hat:red hat hardened images
Attack patterns (CAPEC)
CAPEC-17 Using Malicious Files Likelihood: High · Severity: Very High
CAPEC-35 Leverage Executable Code in Non-Executable Files Likelihood: High · Severity: Very High
CAPEC-76 Manipulating Web Input to File System Calls Likelihood: High · Severity: Very High
CAPEC-132 Symlink Attack Likelihood: Low · Severity: High
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.