VDB-105435 · CVE-2015-3649 · BID 74469

rubygem /tmp input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in rubygem. Affected by this vulnerability is an unknown functionality of the file /tmp. Performing a manipulation results in input validation. This vulnerability is known as CVE-2015-3649. Attacking locally is a requirement. No exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in rubygem (Programming Language Software) (affected version unknown). This affects an unknown functionality of the file /tmp. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The open-uri-cached rubygem allows local users to execute arbitrary Ruby code by creating a directory under /tmp containing "openuri-" followed by a crafted UID, and putting Ruby code in said directory once a meta file is created.

The bug was discovered 05/05/2015. The weakness was published 08/18/2017 by Michael Scherer (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2015-3649 since 05/06/2015. Attacking locally is a requirement. The successful exploitation needs a authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 836 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.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 74469†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 7.8
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: Input validation
CWE: CWE-20
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

05/05/2015 🔍
05/05/2015 +0 days 🔍
05/06/2015 +1 days 🔍
08/18/2017 +835 days 🔍
08/18/2017 +0 days 🔍
08/18/2017 +0 days 🔍
11/08/2019 +812 days 🔍

Sourcesinfo

Advisory: openwall.com
Researcher: Michael Scherer
Status: Not defined

CVE: CVE-2015-3649 (🔍)
GCVE (CVE): GCVE-0-2015-3649
GCVE (VulDB): GCVE-100-105435
SecurityFocus: 74469 - RubyGems open-uri-cached 'cached.rb' Local Privilege Escalation Vulnerability

Entryinfo

Created: 08/18/2017 22:47
Updated: 11/08/2019 08:15
Changes: 08/18/2017 22:47 (60), 11/08/2019 08:15 (1)
Complete: 🔍
Cache ID: 216::103

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

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