VDB-128768 · CVE-2018-1993 · XFDB 154440

IBM Spectrum Scale up to 5.0.0 Local Read Only Cache information disclosure

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.
3.5	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in IBM Spectrum Scale up to 5.0.0. This affects an unknown part of the component Local Read Only Cache. Such manipulation leads to information disclosure. This vulnerability is listed as CVE-2018-1993. The attack must be carried out locally. There is no available exploit.

Detailsinfo

A vulnerability was found in IBM Spectrum Scale up to 5.0.0 (Network Attached Storage Software) and classified as problematic. Affected by this issue is an unknown part of the component Local Read Only Cache. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

IBM Spectrum Scale (GPFS) 4.1.1, 4.2.0, 4.2.1, 4.2.2, 4.2.3, and 5.0.0 where the use of Local Read Only Cache (LROC) is enabled may caused read operation on a file to return data from a different file. IBM X-Force ID: 154440.

The bug was discovered 01/03/2019. The weakness was presented 01/08/2019 (Website). The advisory is shared for download at exchange.xforce.ibmcloud.com. This vulnerability is handled as CVE-2018-1993 since 12/13/2017. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 87374 (IBM Spectrum Scale Data Corruption Vulnerability(ibm10793719)).

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 106485†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Network Attached Storage Software

Vendor

Name

Spectrum Scale

Version

License

commercial

Website

Vendor: https://www.ibm.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.3
NVD Vector: 🔍

CNA Base Score: 4.0
CNA Vector (IBM Corporation): 🔍

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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/13/2017 🔍
01/03/2019 +386 days 🔍
01/03/2019 +0 days 🔍
01/08/2019 +5 days 🔍
01/08/2019 +0 days 🔍
01/09/2019 +1 days 🔍
06/23/2023 +1626 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: exchange.xforce.ibmcloud.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-1993 (🔍)
GCVE (CVE): GCVE-0-2018-1993
GCVE (VulDB): GCVE-100-128768
X-Force: 154440
SecurityFocus: 106485 - IBM Spectrum Scale CVE-2018-1993 Local Information Disclosure Vulnerability

Entryinfo

Created: 01/09/2019 09:12
Updated: 06/23/2023 11:58
Changes: 01/09/2019 09:12 (63), 04/26/2020 17:11 (3), 06/23/2023 11:50 (4), 06/23/2023 11:58 (13)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.