Icinga up to 2.8.0 prepare-dirs $ICINGA2_USER access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Icinga up to 2.8.0 and classified as problematic. This issue affects some unknown processing of the file etc/initsystem/prepare-dirs. Executing a manipulation of the argument $ICINGA2_USER can lead to access control. This vulnerability is registered as CVE-2017-16933. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability was found in Icinga up to 2.8.0. It has been declared as problematic. This vulnerability affects an unknown code of the file etc/initsystem/prepare-dirs. The manipulation of the argument $ICINGA2_USER with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

etc/initsystem/prepare-dirs in Icinga 2.x through 2.8.0 has a chown call for a filename in a user-writable directory, which allows local users to gain privileges by leveraging access to the $ICINGA2_USER account for creation of a link.

The bug was discovered 11/23/2017. The weakness was published 11/24/2017 (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2017-16933 since 11/23/2017. The attack needs to be approached locally. A single authentication is needed for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
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: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 865434
OpenVAS Name: Icinga2 < 2.8.2 Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/23/2017 🔍
11/23/2017 +0 days 🔍
11/24/2017 +1 days 🔍
11/24/2017 +0 days 🔍
11/24/2017 +0 days 🔍
01/16/2023 +1879 days 🔍

Sourcesinfo

Advisory: 5793
Status: Not defined

CVE: CVE-2017-16933 (🔍)
GCVE (CVE): GCVE-0-2017-16933
GCVE (VulDB): GCVE-100-109960

Entryinfo

Created: 11/24/2017 20:20
Updated: 01/16/2023 10:44
Changes: 11/24/2017 20:20 (56), 12/10/2019 15:46 (5), 01/16/2023 10:44 (3)
Complete: 🔍
Cache ID: 216::103

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