keycloak-httpd-client-install up to 0.7 Temp File link following

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in keycloak-httpd-client-install up to 0.7. The impacted element is an unknown function of the component Temp File Handler. Performing a manipulation results in link following. This vulnerability is identified as CVE-2017-15111. The attack is only possible with local access. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in keycloak-httpd-client-install up to 0.7 (Web Server). This affects some unknown processing of the component Temp File Handler. The manipulation with an unknown input leads to a link following vulnerability. CWE is classifying the issue as CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

keycloak-httpd-client-install versions before 0.8 insecurely creates temporary file allowing local attackers to overwrite other files via symbolic link.

The bug was discovered 10/08/2017. The weakness was released 01/20/2018 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2017-15111 since 10/08/2017. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 102 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 106177 (Fedora 27 : keycloak-httpd-client-install (2018-2299cfb708)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277088 (Fedora Security Update for keycloak-httpd-client-install (FEDORA-2018-2299cfb708)).

Upgrading to version 0.8 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 vulnerability database at Tenable (106177). Entry connected to this vulnerability is available at VDB-112252. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
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: Link following
CWE: CWE-59
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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Nessus ID: 106177
Nessus Name: Fedora 27 : keycloak-httpd-client-install (2018-2299cfb708)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 863580
OpenVAS Name: Fedora Update for keycloak-httpd-client-install FEDORA-2018-2299cfb708
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: keycloak-httpd-client-install 0.8
Patch: github.com

Timelineinfo

10/08/2017 🔍
10/08/2017 +0 days 🔍
01/18/2018 +102 days 🔍
01/19/2018 +1 days 🔍
01/19/2018 +0 days 🔍
01/20/2018 +1 days 🔍
01/20/2018 +0 days 🔍
02/02/2023 +1839 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-2299cfb708
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-15111 (🔍)
GCVE (CVE): GCVE-0-2017-15111
GCVE (VulDB): GCVE-100-112251
See also: 🔍

Entryinfo

Created: 01/20/2018 13:30
Updated: 02/02/2023 09:45
Changes: 01/20/2018 13:30 (72), 12/25/2019 13:02 (3), 02/02/2023 09:41 (5), 02/02/2023 09:45 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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