dnsdist version 1.1.0 is vulnerable to a flaw in authentication mechanism for REST API potentially allowing CSRF attack.

The remote SUSE Linux SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:2777-1 advisory.

  - An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing     responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response     may contain an EDNS0 OPT record that has to be removed before forwarding the response to the initial     client. On a 32-bit system, the pointer arithmetic used when parsing the received response to remove that     record might trigger an undefined behavior leading to a crash. (CVE-2016-7069)

  - dnsdist version 1.1.0 is vulnerable to a flaw in authentication mechanism for REST API potentially     allowing CSRF attack. (CVE-2017-7557)

  - An issue has been found in PowerDNS DNSDist before 1.3.3 allowing a remote attacker to craft a DNS query     with trailing data such that the addition of a record by dnsdist, for example an OPT record when adding     EDNS Client Subnet, might result in the trailing data being smuggled to the backend as a valid record     while not seen by dnsdist. This is an issue when dnsdist is deployed as a DNS Firewall and used to filter     some records that should not be received by the backend. This issue occurs only when either the     'useClientSubnet' or the experimental 'addXPF' parameters are used when declaring a new backend.
    (CVE-2018-14663)

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

The remote openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:2760-1 advisory.

  - An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing     responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response     may contain an EDNS0 OPT record that has to be removed before forwarding the response to the initial     client. On a 32-bit system, the pointer arithmetic used when parsing the received response to remove that     record might trigger an undefined behavior leading to a crash. (CVE-2016-7069)

  - dnsdist version 1.1.0 is vulnerable to a flaw in authentication mechanism for REST API potentially     allowing CSRF attack. (CVE-2017-7557)

  - An issue has been found in PowerDNS DNSDist before 1.3.3 allowing a remote attacker to craft a DNS query     with trailing data such that the addition of a record by dnsdist, for example an OPT record when adding     EDNS Client Subnet, might result in the trailing data being smuggled to the backend as a valid record     while not seen by dnsdist. This is an issue when dnsdist is deployed as a DNS Firewall and used to filter     some records that should not be received by the backend. This issue occurs only when either the     'useClientSubnet' or the experimental 'addXPF' parameters are used when declaring a new backend.
    (CVE-2018-14663)

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

Update to new upstream release 1.2.0 Security fix for CVE-2016-7069 and CVE-2017-7557

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

PowerDNS Security Advisory reports :

The first issue can lead to a denial of service on 32-bit if a backend sends crafted answers, and the second to an alteration of dnsdist's ACL if the API is enabled, writable and an authenticated user is tricked into visiting a crafted website.

ID	Name	Product	Family	Severity
177989	SUSE SLES15 Security Update : dnsdist (SUSE-SU-2023:2777-1)	Nessus	SuSE Local Security Checks	high
177917	openSUSE 15 Security Update : dnsdist (SUSE-SU-2023:2760-1)	Nessus	SuSE Local Security Checks	high
102900	Fedora 25 : dnsdist (2017-98e8569b33)	Nessus	Fedora Local Security Checks	high
102894	Fedora 26 : dnsdist (2017-487fae29b4)	Nessus	Fedora Local Security Checks	high
102688	FreeBSD : dnsdist -- multiple vulnerabilities (198d82f3-8777-11e7-950a-e8e0b747a45a)	Nessus	FreeBSD Local Security Checks	high

Detections

Analytics

CVE-2017-7557

high

Tenable Plugins

high

high

high

high

high