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AlienVault OTX Vulnerabilities

AlienVault OTX Malware

systemd through v245 mishandles numerical usernames such as ones composed of decimal digits or 0x followed by hex digits, as demonstrated by use of root privileges when privileges of the 0x0 user account were intended. NOTE: this issue exists because of an incomplete fix for CVE-2017-1000082.

CVE-2020-13776 is a vulnerability in systemd versions up to and including v245, where the system improperly handles numerical usernames, specifically those composed entirely of decimal digits or prefixed with '0x' followed by hexadecimal digits. This mishandling can lead to privilege escalation scenarios where the system grants root privileges when it was intended to assign the privileges of a less privileged user, such as the user with UID 0x0. The root cause is an incomplete fix for a previous vulnerability, CVE-2017-1000082, indicating that the underlying issue with user ID parsing and privilege assignment was not fully resolved. Systemd is a widely used init system and service manager in many Linux distributions, responsible for managing system processes and user sessions. The vulnerability arises from the way systemd interprets usernames that are numeric or hexadecimal strings, potentially confusing user identity resolution and privilege assignment mechanisms. The CVSS v3.1 base score is 6.7, reflecting a medium severity level, with the vector indicating that the attack requires local access (AV:L), high attack complexity (AC:H), low privileges (PR:L), and user interaction (UI:R). The impact affects confidentiality, integrity, and availability, as improper privilege escalation can allow unauthorized access to sensitive data, modification of system files, or disruption of services. No known exploits are reported in the wild, and no vendor patches are linked in the provided data, suggesting that remediation may require manual updates or configuration changes by system administrators.

Detailed information about CVE-2020-13776: n/a in n/a affecting n/a n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2020-13776: n/a in n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2020-13776: n/a in n/a

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