php-fpm 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.
5.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in php-fpm. Affected is an unknown function. Executing a manipulation can lead to link following. This vulnerability is tracked as CVE-2015-3211. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in php-fpm (Programming Language Software) (version unknown). This vulnerability affects an unknown function. The manipulation with an unknown input leads to a link following vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

php-fpm allows local users to write to or create arbitrary files via a symlink attack.

The bug was discovered 06/05/2015. The weakness was disclosed 08/25/2017 as Bug 1228721 as not defined bug report (Bugzilla). The advisory is available at bugzilla.redhat.com. This vulnerability was named CVE-2015-3211 since 04/10/2015. Local access is required to approach this attack. The successful exploitation requires a single authentication. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 812 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.

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Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/10/2015 🔍
06/05/2015 +56 days 🔍
08/25/2017 +812 days 🔍
08/25/2017 +0 days 🔍
08/27/2017 +2 days 🔍
11/10/2019 +805 days 🔍

Sourcesinfo

Advisory: Bug 1228721
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-3211 (🔍)
GCVE (CVE): GCVE-0-2015-3211
GCVE (VulDB): GCVE-100-105742

Entryinfo

Created: 08/27/2017 06:44
Updated: 11/10/2019 11:35
Changes: 08/27/2017 06:44 (50), 11/10/2019 11:35 (8)
Complete: 🔍
Cache ID: 216::103

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