Ruby WIN32OLE type confusion

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Ruby. This issue affects the function WIN32OLE. Performing a manipulation results in type confusion. This vulnerability is known as CVE-2016-2336. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Ruby (Programming Language Software) (affected version not known). It has been classified as critical. This affects the function WIN32OLE. The manipulation with an unknown input leads to a type confusion vulnerability. CWE is classifying the issue as CWE-843. The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Type confusion exists in two methods of Ruby's WIN32OLE class, ole_invoke and ole_query_interface. Attacker passing different type of object than this assumed by developers can cause arbitrary code execution.

The bug was discovered 06/14/2016. The weakness was published 01/06/2017 (Website). It is possible to read the advisory at talosintelligence.com. This vulnerability is uniquely identified as CVE-2016-2336 since 02/12/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 206 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.

Similar entries are available at VDB-95057 and VDB-95056. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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: Type confusion
CWE: CWE-843
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/12/2016 🔍
06/14/2016 +123 days 🔍
01/06/2017 +206 days 🔍
01/06/2017 +0 days 🔍
01/07/2017 +1 days 🔍
04/20/2025 +3025 days 🔍

Sourcesinfo

Advisory: talosintelligence.com
Status: Not defined

CVE: CVE-2016-2336 (🔍)
GCVE (CVE): GCVE-0-2016-2336
GCVE (VulDB): GCVE-100-95055
OSVDB: - CVE-2016-2336 - Ruby - Type Confusion Issue

See also: 🔍

Entryinfo

Created: 01/07/2017 12:49
Updated: 04/20/2025 04:06
Changes: 01/07/2017 12:49 (55), 07/15/2020 12:30 (3), 04/20/2025 04:06 (16)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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