Filtered by vendor Avast
Subscribe
Total
61 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2020-13657 | 1 Avast | 2 Avg Antivirus, Free Antivirus | 2024-02-04 | 2.1 LOW | 5.5 MEDIUM |
| An elevation of privilege vulnerability exists in Avast Free Antivirus and AVG AntiVirus Free before 20.4 due to improperly handling hard links. The vulnerability allows local users to take control of arbitrary files. | |||||
| CVE-2020-10868 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2024-02-04 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in Avast Antivirus before 20. The aswTask RPC endpoint for the TaskEx library in the Avast Service (AvastSvc.exe) allows attackers to launch the Repair App RPC call from a Low Integrity process. | |||||
| CVE-2020-25289 | 1 Avast | 1 Secureline Vpn | 2024-02-04 | 2.1 LOW | 5.5 MEDIUM |
| The VPN service in AVAST SecureLine before 5.6.4982.470 allows local users to write to arbitrary files via an Object Manager symbolic link from the log directory (which has weak permissions). | |||||
| CVE-2020-10863 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2024-02-04 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in Avast Antivirus before 20. The aswTask RPC endpoint for the TaskEx library in the Avast Service (AvastSvc.exe) allows attackers to trigger a shutdown via RPC from a Low Integrity process via TempShutDownMachine. | |||||
| CVE-2020-10862 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2024-02-04 | 4.6 MEDIUM | 7.8 HIGH |
| An issue was discovered in Avast Antivirus before 20. The aswTask RPC endpoint for the TaskEx library in the Avast Service (AvastSvc.exe) allows attackers to achieve Local Privilege Escalation (LPE) via RPC. | |||||
| CVE-2019-17190 | 1 Avast | 1 Secure Browser | 2024-02-04 | 7.2 HIGH | 7.8 HIGH |
| A Local Privilege Escalation issue was discovered in Avast Secure Browser 76.0.1659.101. The vulnerability is due to an insecure ACL set by the AvastBrowserUpdate.exe (which is running as NT AUTHORITY\SYSTEM) when AvastSecureBrowser.exe checks for new updates. When the update check is triggered, the elevated process cleans the ACL of the Update.ini file in %PROGRAMDATA%\Avast Software\Browser\Update\ and sets all privileges to group Everyone. Because any low-privileged user can create, delete, or modify the Update.ini file stored in this location, an attacker with low privileges can create a hard link named Update.ini in this folder, and make it point to a file writable by NT AUTHORITY\SYSTEM. Once AvastBrowserUpdate.exe is triggered by the update check functionality, the DACL is set to a misconfigured value on the crafted Update.ini and, consequently, to the target file that was previously not writable by the low-privileged attacker. | |||||
| CVE-2019-18653 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2024-02-04 | 4.3 MEDIUM | 6.1 MEDIUM |
| A Cross Site Scripting (XSS) issue exists in Avast AntiVirus (Free, Internet Security, and Premiere Edition) 19.3.2369 build 19.3.4241.440 in the Network Notification Popup, allowing an attacker to execute JavaScript code via an SSID Name. | |||||
| CVE-2020-9399 | 1 Avast | 3 Antivirus For Linux, Antivirus Pro, Antivirus Pro Plus | 2024-02-04 | 4.3 MEDIUM | 5.5 MEDIUM |
| The Avast AV parsing engine allows virus-detection bypass via a crafted ZIP archive. This affects versions before 12 definitions 200114-0 of Antivirus Pro, Antivirus Pro Plus, and Antivirus for Linux. | |||||
| CVE-2019-17093 | 2 Avast, Avg | 2 Antivirus, Anti-virus | 2024-02-04 | 4.4 MEDIUM | 7.8 HIGH |
| An issue was discovered in Avast antivirus before 19.8 and AVG antivirus before 19.8. A DLL Preloading vulnerability allows an attacker to implant %WINDIR%\system32\wbemcomn.dll, which is loaded into a protected-light process (PPL) and might bypass some of the self-defense mechanisms. This affects all components that use WMI, e.g., AVGSvc.exe 19.6.4546.0 and TuneupSmartScan.dll 19.1.884.0. | |||||
| CVE-2019-18893 | 3 Avast, Avg, Video Downloader Project | 3 Secure Browser, Secure Browser, Video Downloader | 2024-02-04 | 4.3 MEDIUM | 6.1 MEDIUM |
| XSS in the Video Downloader component before 1.5 of Avast Secure Browser 77.1.1831.91 and AVG Secure Browser 77.0.1790.77 allows websites to execute their code in the context of this component. While Video Downloader is technically a browser extension, it is granted a very wide set of privileges and can for example access cookies and browsing history, spy on the user while they are surfing the web, and alter their surfing experience in almost arbitrary ways. | |||||
| CVE-2020-8987 | 1 Avast | 2 Antitrack, Avg Antitrack | 2024-02-04 | 5.8 MEDIUM | 7.4 HIGH |
| Avast AntiTrack before 1.5.1.172 and AVG Antitrack before 2.0.0.178 proxies traffic to HTTPS sites but does not validate certificates, and thus a man-in-the-middle can host a malicious website using a self-signed certificate. No special action necessary by the victim using AntiTrack with "Allow filtering of HTTPS traffic for tracking detection" enabled. (This is the default configuration.) | |||||
| CVE-2019-18894 | 1 Avast | 1 Premium Security | 2024-02-04 | 9.3 HIGH | 7.8 HIGH |
| In Avast Premium Security 19.8.2393, attackers can send a specially crafted request to the local web server run by Avast Antivirus on port 27275 to support Bank Mode functionality. A flaw in the processing of a command allows execution of arbitrary OS commands with the privileges of the currently logged in user. This allows for example attackers who compromised a browser extension to escape from the browser sandbox. | |||||
| CVE-2019-11230 | 1 Avast | 1 Antivirus | 2024-02-04 | 3.6 LOW | 4.4 MEDIUM |
| In Avast Antivirus before 19.4, a local administrator can trick the product into renaming arbitrary files by replacing the Logs\Update.log file with a symlink. The next time the product attempts to write to the log file, the target of the symlink is renamed. This defect can be exploited to rename a critical product file (e.g., AvastSvc.exe), causing the product to fail to start on the next system restart. | |||||
| CVE-2018-12572 | 1 Avast | 1 Free Antivirus | 2024-02-04 | 2.1 LOW | 7.8 HIGH |
| Avast Free Antivirus prior to 19.1.2360 stores user credentials in memory upon login, which allows local users to obtain sensitive information by dumping AvastUI.exe application memory and parsing the data. | |||||
| CVE-2017-8308 | 1 Avast | 1 Antivirus | 2024-02-04 | 5.0 MEDIUM | 7.5 HIGH |
| In Avast Antivirus before v17, an unprivileged user (and thus malware or a virus) can mark an arbitrary process as Trusted from the perspective of the Avast product. This bypasses the Self-Defense feature of the product, opening a door to subsequent attack on many of its components. | |||||
| CVE-2017-5567 | 1 Avast | 4 Free Antivirus, Internet Security, Premier and 1 more | 2024-02-04 | 7.2 HIGH | 6.7 MEDIUM |
| Code injection vulnerability in Avast Premier 12.3 (and earlier), Internet Security 12.3 (and earlier), Pro Antivirus 12.3 (and earlier), and Free Antivirus 12.3 (and earlier) allows a local attacker to bypass a self-protection mechanism, inject arbitrary code, and take full control of any Avast process via a "DoubleAgent" attack. One perspective on this issue is that (1) these products do not use the Protected Processes feature, and therefore an attacker can enter an arbitrary Application Verifier Provider DLL under Image File Execution Options in the registry; (2) the self-protection mechanism is intended to block all local processes (regardless of privileges) from modifying Image File Execution Options for these products; and (3) this mechanism can be bypassed by an attacker who temporarily renames Image File Execution Options during the attack. | |||||
| CVE-2017-8307 | 1 Avast | 1 Antivirus | 2024-02-04 | 7.5 HIGH | 9.8 CRITICAL |
| In Avast Antivirus before v17, using the LPC interface API exposed by the AvastSVC.exe Windows service, it is possible to launch predefined binaries, or replace or delete arbitrary files. This vulnerability is exploitable by any unprivileged user when Avast Self-Defense is disabled. It is also exploitable in conjunction with CVE-2017-8308 when Avast Self-Defense is enabled. The vulnerability allows for Denial of Service attacks and hiding traces of a possible attack. | |||||
| CVE-2016-3986 | 1 Avast | 1 Avast | 2024-02-04 | 9.3 HIGH | 7.8 HIGH |
| Avast allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via a crafted PE file, related to authenticode parsing. | |||||
| CVE-2015-8620 | 1 Avast | 4 Avast Free Antivirus, Avast Internet Security, Avast Premier and 1 more | 2024-02-04 | 7.2 HIGH | 7.8 HIGH |
| Heap-based buffer overflow in the Avast virtualization driver (aswSnx.sys) in Avast Internet Security, Pro Antivirus, Premier, and Free Antivirus before 11.1.2253 allows local users to gain privileges via a Unicode file path in an IOCTL request. | |||||
| CVE-2016-4025 | 1 Avast | 11 Business Security, Email Server Security, Endpoint Protection and 8 more | 2024-02-04 | 2.1 LOW | 5.5 MEDIUM |
| Avast Internet Security v11.x.x, Pro Antivirus v11.x.x, Premier v11.x.x, Free Antivirus v11.x.x, Business Security v11.x.x, Endpoint Protection v8.x.x, Endpoint Protection Plus v8.x.x, Endpoint Protection Suite v8.x.x, Endpoint Protection Suite Plus v8.x.x, File Server Security v8.x.x, and Email Server Security v8.x.x allow attackers to bypass the DeepScreen feature via a DeviceIoControl call. | |||||