CVSS: 7.3EPSS: 0%CPEs: 2EXPL: 0CVE-2024-5102 – Elevation of Privelage via symlinked file in Avast Antivirus
https://notcve.org/view.php?id=CVE-2024-5102
A sym-linked file accessed via the repair function in Avast Antivirus <24.2 on Windows may allow user to elevate privilege to delete arbitrary files or run processes as NT AUTHORITY\SYSTEM. The vulnerability exists within the "Repair" (settings -> troubleshooting -> repair) feature, which attempts to delete a file in the current user's AppData directory as NT AUTHORITY\SYSTEM. A low-privileged user can make a pseudo-symlink and a junction folder and point to a file on the system. This can provide a low-privileged user an Elevation of Privilege to win a race-condition which will re-create the system files and make Windows callback to a specially-crafted file which could be used to launch a privileged shell instance. This issue affects Avast Antivirus prior to 24.2. Un archivo con enlace simbólico al que se accede a través de la función de reparación en Avast Antivirus <24.2 en Windows puede permitir al usuario elevar privilegios para eliminar archivos arbitrarios o ejecutar procesos como NT AUTHORITY\SYSTEM. • https://support.norton.com/sp/static/external/tools/security-advisories.html • CWE-59: Improper Link Resolution Before File Access ('Link Following') CWE-1284: Improper Validation of Specified Quantity in Input •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2020-20118
https://notcve.org/view.php?id=CVE-2020-20118
Buffer Overflow vulnerability in Avast AntiVirus before v.19.7 allows a local attacker to cause a denial of service via a crafted request to the aswSnx.sys driver. • http://avast.com https://gitlab.com/yongchuank/avast-aswsnx-ioctl-82ac0060-oob-write • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2023-1900 – Avira Free Antivirus Integer Overflow Local Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2023-1900
A vulnerability within the Avira network protection feature allowed an attacker with local execution rights to cause an overflow. This could corrupt the data on the heap and lead to a denial-of-service situation. Issue was fixed with Endpointprotection.exe version 1.0.2303.633 This vulnerability allows local attackers to escalate privileges on affected installations of Avira Free Antivirus. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the netprotection network filter driver. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. • https://support.norton.com/sp/static/external/tools/security-advisories.html • CWE-190: Integer Overflow or Wraparound •
CVSS: 5.8EPSS: 0%CPEs: 3EXPL: 0CVE-2023-1587
https://notcve.org/view.php?id=CVE-2023-1587
Avast and AVG Antivirus for Windows were susceptible to a NULL pointer dereference issue via RPC-interface. The issue was fixed with Avast and AVG Antivirus version 22.11 • https://support.norton.com/sp/static/external/tools/security-advisories.html • CWE-476: NULL Pointer Dereference •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2023-1586
https://notcve.org/view.php?id=CVE-2023-1586
Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) vulnerability in the restore process leading to arbitrary file creation. The issue was fixed with Avast and AVG Antivirus version 22.11 • https://support.norton.com/sp/static/external/tools/security-advisories.html • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •