VDB-145507 · CVE-2019-18931 · GCVE-0-2019-18931

Western Digital My Cloud EX2 Ultra 2.31.195 Instruction Pointer POST Parameter buffer overflow

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.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Western Digital My Cloud EX2 Ultra 2.31.195. It has been classified as critical. Affected is an unknown function of the component Instruction Pointer. This manipulation as part of POST Parameter causes buffer overflow. This vulnerability is tracked as CVE-2019-18931. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in Western Digital My Cloud EX2 Ultra 2.31.195 (Cloud Software) and classified as critical. Affected by this vulnerability is an unknown code block of the component Instruction Pointer. The manipulation as part of a POST Parameter leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Western Digital My Cloud EX2 Ultra firmware 2.31.195 allows a Buffer Overflow with Extended Instruction Pointer (EIP) control via crafted GET/POST parameters.

The weakness was disclosed 11/13/2019. This vulnerability is known as CVE-2019-18931 since 11/12/2019. The attack can be launched remotely. The requirement for exploitation is a single authentication. The technical details are unknown and an exploit is not publicly available.

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

The entries VDB-145506 and VDB-145505 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Cloud Software

Vendor

Western Digital

Name

My Cloud EX2 Ultra

Version

2.31.195

License

commercial

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/12/2019 🔍
11/13/2019 +1 days 🔍
11/14/2019 +1 days 🔍
02/13/2024 +1552 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2019-18931 (🔍)
GCVE (CVE): GCVE-0-2019-18931
GCVE (VulDB): GCVE-100-145507
See also: 🔍

Entryinfo

Created: 11/14/2019 16:09
Updated: 02/13/2024 15:40
Changes: 11/14/2019 16:09 (37), 11/14/2019 16:14 (18), 02/13/2024 15:40 (3)
Complete: 🔍
Cache ID: 216::103

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