James Loureiro

**Name of the Vulnerable Software and Affected Versions** TP-Link Archer A7 Firmware version 190726 **Description** This issue allows remote attackers to execute arbitrary code on affected installations of TP-Link Archer A7 routers. Authentication is not required to exploit this issue. The specific flaw exists within the tmpServer service, which listens on TCP port 20002. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this issue to execute code in the context of the current process. **Recommendations** For TP-Link Archer A7 Firmware version 190726, as a temporary workaround, consider disabling the tmpServer service until a patch is available. Restrict access to TCP port 20002 to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

**Name of the Vulnerable Software and Affected Versions** TP-Link Archer A7 Firmware version 190726 **Description** This issue allows a firewall bypass on affected TP-Link Archer A7 installations. It does not require authentication to exploit. The flaw exists within the handling of IPv6 connections, specifically due to the lack of proper filtering of IPv6 SSH connections. An attacker can leverage this, potentially in conjunction with other issues, to execute code in the context of root. **Recommendations** For TP-Link Archer A7 Firmware version 190726, consider restricting or disabling IPv6 SSH connections as a temporary mitigation measure until a patch is available. Additionally, restrict access to the handling of IPv6 connections to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** TP-Link Archer A7 Firmware version 190726 **Description** This issue allows remote attackers to bypass authentication on affected installations. The specific flaw exists within the handling of SSH port forwarding requests during initial setup, resulting from the lack of proper authentication prior to establishing SSH port forwarding rules. An attacker can leverage this to escalate privileges to resources normally protected from the WAN interface. **Recommendations** For TP-Link Archer A7 Firmware version 190726, as a temporary workaround, consider disabling SSH port forwarding until a patch is available. Restrict access to the WAN interface to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Samsung Members versions prior to 2.4.25 **Description** This issue allows remote attackers to escalate privileges on vulnerable installations. An attacker must first obtain the ability to execute low-privileged code on the target system. The flaw exists within the handling of Intents, specifically in the ability to send an Intent that would not otherwise be reachable. This can be leveraged to escalate privileges to resources normally protected from the application. **Recommendations** For versions prior to 2.4.25, update to version 2.4.25 to resolve the issue. As a temporary workaround, consider restricting the handling of Intents to minimize the risk of exploitation.

Name of the Vulnerable Software and Affected Versions: Samsung Notes versions prior to 2.0.02.31 Description: This issue allows local attackers to escalate privileges on vulnerable installations. An attacker must first obtain the ability to execute low-privileged code on the target system. The flaw exists within the handling of ZIP files, specifically due to the lack of proper validation of a user-supplied path prior to using it in file operations. This allows an attacker to escalate privileges to resources normally protected from the application. Recommendations: For versions prior to 2.0.02.31, update to version 2.0.02.31 or later to resolve the issue. As a temporary workaround, consider restricting the handling of ZIP files until a patch is applied. Avoid using user-supplied paths in file operations to minimize the risk of exploitation.

Name of the Vulnerable Software and Affected Versions: Samsung Galaxy Apps versions prior to 4.2.18.2 Description: This issue allows local attackers to escalate privileges on vulnerable installations. An attacker must first obtain the ability to execute low-privileged code on the target system. The flaw exists within the handling of a staging mode, specifically in the ability to change the configuration based on the presence of a file in a user-controlled location. This can be leveraged to escalate privileges to resources normally protected from the application. Recommendations: For versions prior to 4.2.18.2, update to version 4.2.18.2 to resolve the issue. As a temporary workaround, consider restricting access to the staging mode to minimize the risk of exploitation.