Singularity up to 2.3.x/2.4.x/2.5.1 Overlay File System information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Singularity up to 2.3.x/2.4.x/2.5.1 and classified as problematic. The affected element is an unknown function of the component Overlay File System. This manipulation causes information disclosure. This vulnerability is registered as CVE-2018-12021. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Singularity up to 2.3.x/2.4.x/2.5.1. It has been declared as problematic. Affected by this vulnerability is an unknown part of the component Overlay File System. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

Singularity 2.3.0 through 2.5.1 is affected by an incorrect access control on systems supporting overlay file system. When using the overlay option, a malicious user may access sensitive information by exploiting a few specific Singularity features.

The bug was discovered 07/03/2018. The weakness was published 07/05/2018 (GitHub Repository). The advisory is shared at github.com. This vulnerability is known as CVE-2018-12021 since 06/07/2018. The exploitation appears to be easy. The attack can be launched remotely. A single authentication is necessary for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 118338 (openSUSE Security Update : singularity (openSUSE-2018-1223)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (118338). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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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Nessus ID: 118338
Nessus Name: openSUSE Security Update : singularity (openSUSE-2018-1223)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: github.com

Timelineinfo

06/07/2018 🔍
07/03/2018 +26 days 🔍
07/05/2018 +1 days 🔍
07/05/2018 +0 days 🔍
07/06/2018 +1 days 🔍
10/23/2018 +109 days 🔍
10/24/2018 +1 days 🔍
04/03/2023 +1622 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-12021 (🔍)
GCVE (CVE): GCVE-0-2018-12021
GCVE (VulDB): GCVE-100-120445

Entryinfo

Created: 07/06/2018 08:58
Updated: 04/03/2023 15:38
Changes: 07/06/2018 08:58 (67), 02/25/2020 23:23 (4), 04/03/2023 15:38 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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