PowerDNS Authoritative Server up to 4.0.4 API security check

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in PowerDNS Authoritative Server up to 4.0.4. Affected by this vulnerability is an unknown functionality of the component API. The manipulation results in security check. This vulnerability is reported as CVE-2017-15091. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in PowerDNS Authoritative Server up to 4.0.4 (Domain Name Software). Affected is an unknown part of the component API. The manipulation with an unknown input leads to a security check vulnerability. CWE is classifying the issue as CWE-358. The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue has been found in the API component of PowerDNS Authoritative 4.x up to and including 4.0.4 and 3.x up to and including 3.4.11, where some operations that have an impact on the state of the server are still allowed even though the API has been configured as read-only via the api-readonly keyword. This missing check allows an attacker with valid API credentials to flush the cache, trigger a zone transfer or send a NOTIFY.

The bug was discovered 11/27/2017. The weakness was disclosed 01/23/2018 with FortiGuard Labs (Website). The advisory is shared for download at doc.powerdns.com. This vulnerability is traded as CVE-2017-15091 since 10/08/2017. It is possible to launch the attack remotely. A authentication is necessary for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1211.

The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 105230 (openSUSE Security Update : pdns (openSUSE-2017-1340)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170592 (OpenSUSE Security Update for pdns (openSUSE-SU-2017:3221-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (105230) and SecurityFocus (BID 101982†). The entries VDB-112334, VDB-112331, VDB-112333 and VDB-112335 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Security check
CWE: CWE-358
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 105230
Nessus Name: openSUSE Security Update : pdns (openSUSE-2017-1340)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 863499
OpenVAS Name: PowerDNS Authoritative Server DoS Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/08/2017 🔍
11/27/2017 +50 days 🔍
11/27/2017 +0 days 🔍
12/05/2017 +8 days 🔍
12/14/2017 +9 days 🔍
01/23/2018 +40 days 🔍
01/23/2018 +0 days 🔍
01/24/2018 +1 days 🔍
02/01/2021 +1104 days 🔍

Sourcesinfo

Advisory: doc.powerdns.com
Researcher: everyman, Kees Monshouwer, Nixu, Chris Navarrete
Organization: FortiGuard Labs
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-15091 (🔍)
GCVE (CVE): GCVE-0-2017-15091
GCVE (VulDB): GCVE-100-112332
SecurityFocus: 101982 - PowerDNS Authoritative Server Module Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 01/24/2018 07:58
Updated: 02/01/2021 14:24
Changes: 01/24/2018 07:58 (73), 12/27/2019 06:39 (7), 02/01/2021 14:24 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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