Advisories

Each great research deserves

some great advisories.

Research is one of Shielder’s pillars.

We invest from 25% to 100% of employees’ time into 0day vulnerability research, exploit development and training. By constantly pushing the boundaries of our knowledge and discovering new vulnerabilities, we contribute to the security of the digital ecosystem.

For each and every finding, we adhere to our disclosure policy and we publish an advisory with the technical details about the issue and the remediation. Furthermore, after completing throughout and long-term research campaigns, we openly share with the information security community our modus operandi, tools and lessons learned in our blog and at conferences around the world.

We strive to continuously improve our capabilities and offer research-driven security consultancy to our clients. For any information, get in touch with us.

CVE-2020-28042: ServiceStack prior to version 5.9.2 is affected by a JWT signature verification bypass in the 'ServiceStack.Auth.JwtAuthProviderReader' method, which could be used to bypass the authentication mechanisms and/or to elevate privileges.

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Bitwarden Server 1.35.1 is affected by a blind Server-Side Request Forgery (SSRF): an authenticated attacker can trigger arbitrary HTTP GET requests, even to locally exposed services, by adding a credential for a malicious domain.

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Chadha PHPKB 9.0 Enterprise Edition is affected by an arbitrary file disclosure: installer/test-connection.php (part of the installation process) allows a remote unauthenticated attacker to disclose local files on hosts running PHP before 7.2.16, or on hosts where the MySQL ALLOW LOCAL DATA INFILE option is enabled.

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LibreNMS 1.65 is affected by an authenticated command-injection vulnerability in the "/about" API endpoint. A "normal" privileges attacker can gain Remote Code Execution (RCE) on the LibreNMS host.

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LibreNMS 1.65 is affected by an authenticated command-injection vulnerability via the HTTP GET "title" parameter in the "/graph.php" API endpoint. A "normal" privileges attacker can gain Remote Code Execution (RCE) on the LibreNMS host.

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LibreNMS 1.65 is affected by a SQL Injection vulnerability via the 'address' parameter in the '/ajax_table.php' API endpoint. A 'normal' privileges attacker can gain access to the database in use by LibreNMS.

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LibreNMS 1.65 is affected by multiple SQL Injection vulnerabilities via the 'searchPhrase' parameter in the '/ajax_table.php' API endpoint. A 'normal' privileges attacker can gain access to the database in use by LibreNMS.

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LibreNMS 1.65 is affected by multiple SQL Injection vulnerabilities via the `sort` parameter in the '/ajax_table.php' API endpoint. A 'normal' privileges attacker can gain access to the database in use by LibreNMS.

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Horde Gollem 3.0.12, as used in Horde Groupware Webmail Edition 5.2.22, is affected by a reflected Cross-Site Scripting (XSS) vulnerability via the HTTP GET dir parameter in the browser functionality. An attacker can obtain access to a victim’s webmail account by making them visit a malicious URL.

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The image view functionality in Horde Groupware Webmail Edition before 5.2.22 is affected by a stored Cross-Site Scripting (XSS) vulnerability via an SVG image upload containing a JavaScript payload. An attacker can obtain access to a victim's webmail account by making them visit a malicious URL.

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