Adminer is an open-source database management in a single PHP file. In adminer from version 4.0.0 and before 4.7.9 there is a server-side request forgery vulnerability. Users of Adminer versions bundling all drivers (e.g. `adminer.php`) are affected. This is fixed in version 4.7.9.

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5271-1 advisory.

    It was discovered that Adminer did not escape data in the history parameter of the default URI. A remote     attacker could possibly use this issue to perform cross-site scripting (XSS) attacks. This issue only     affected Ubuntu 20.04 ESM. (CVE-2020-35572)

    Adam Crosser and Brian Sizemore discovered that Adminer incorrectly handled redirection requests to     internal servers. An unauthenticated remote attacker could possibly use this to perform a server-side     request forgery attack and expose sensitive information. (CVE-2021-21311)

    It was discovered that Adminer was incorrectly escaping data in the doc_link function. A remote attacker     could possibly use this issue to perform cross-site scripting (XSS) attacks. This issue only affected     Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2021-29625)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Adminer installed on the remote host suffers from a Server-Side Request Forgery (SSRF) flaw via the error page of Elasticsearch and ClickHouse in versions bundling all drivers, this may permit clients to make onward connections to arbitrary systems/ports & can be used to potentially bypass firewalls to identify internal resource and perform portscanning.

The version of Adminer installed on the remote host suffers from a Server-Side Request Forgery (SSRF) flaw via the error page of Elasticsearch and ClickHouse in versions bundling all drivers, this may permit clients to make onward connections to arbitrary systems/ports & can be used to potentially bypass firewalls to identify internal resource and perform portscanning. Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

Adminer is an open source database management in a single PHP file. In adminer from version 4.0.0 and before 4.7.9 there is a server-side request forgery vulnerability. Users of Adminer versions bundling all drivers (e.g. `adminer.php`) are affected.

For Debian 9 stretch, this problem has been fixed in version 4.2.5-3+deb9u2.

We recommend that you upgrade your adminer packages.

For the detailed security status of adminer please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/adminer

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
183127	Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM : Adminer vulnerabilities (USN-5271-1)	Nessus	Ubuntu Local Security Checks	high
113238	Adminer 4.x < 4.7.9 Server-Side Request Forgery	Web App Scanning	Component Vulnerability	high
112910	Adminer < 4.7.8 Server-Side Request Forgery	Web App Scanning	Component Vulnerability	high
146974	Debian DLA-2580-1 : adminer security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2021-21311

high

Tenable Plugins

high

high

high

high