Skip to main content

Singularity CVE-2019-19724

HIGH
Incorrect Default Permissions (CWE-276)
2019-12-18 cve@mitre.org
7.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V13 - Configuration Default permission hardening
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.

Exploit ScenarioDerived

A remote attacker could access resources due to overly permissive default settings by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 1.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

Insecure permissions (777) are set on $HOME/.singularity when it is newly created by Singularity (version from 3.3.0 to 3.5.1), which could lead to an information leak, and malicious redirection of. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Set restrictive default permissions, follow principle of least privilege, review defaults during deployment.

Affected Packages

go github.com/sylabs/singularity fix: 3.5.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in go

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Incorrect Default Permissions (CWE-276), which allows attackers to access resources due to overly permissive default settings. Insecure permissions (777) are set on $HOME/.singularity when it is newly created by Singularity (version from 3.3.0 to 3.5.1), which could lead to an information leak, and malicious redirection of operations performed against Sylabs cloud services. Affected products include: Sylabs Singularity.

Know when Singularity gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

Insecure permissions (777) are set on $HOME/.singularity when it is newly created by Singularity (version from 3.3.0 to 3.5.1), which could lead to an information leak, and malicious redirection of operations performed against Sylabs cloud services.

Threat Intelligence Overview

EPSS Score
1.2%
Top 34% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 1.2%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

Affected Products (CPE)NVD

cpe:2.3:a:sylabs:singularity:*:*:*:*:*:*:*:*
CVE-2019-11328 HIGH POC
8.8 May 14

An issue was discovered in Singularity 3.1.0 to 3.2.0-rc2, a malicious user with local/network access to the host system

CVE-2021-33027 CRITICAL
9.8 Jul 19

Sylabs Singularity Enterprise through 1.6.2 has Insufficient Entropy in a nonce. Rated critical severity (CVSS 9.8), thi

CVE-2021-33622 CRITICAL
9.8 Jun 15

Sylabs Singularity 3.5.x and 3.6.x, and SingularityPRO before 3.5-8, has an Incorrect Check of a Function's Return Value

CVE-2020-15229 CRITICAL
9.3 Oct 14

Singularity (an open source container platform) from version 3.1.1 through 3.6.3 has a vulnerability. Rated critical sev

CVE-2020-25040 HIGH
8.8 Sep 16

Sylabs Singularity through 3.6.2 has Insecure Permissions on temporary directories used in explicit and implicit contain

CVE-2020-25039 HIGH
8.1 Sep 16

Sylabs Singularity 3.2.0 through 3.6.2 has Insecure Permissions on temporary directories used in fakeroot or user namesp

CVE-2023-30549 HIGH
7.8 Apr 25

Apptainer is an open source container platform for Linux. Rated high severity (CVSS 7.8), this vulnerability is low atta

CVE-2018-19295 HIGH
7.8 Dec 17

Sylabs Singularity 2.4 to 2.6 allows local users to conduct Improper Input Validation attacks. Rated high severity (CVSS

CVE-2020-13847 HIGH
7.5 Jul 14

Sylabs Singularity 3.0 through 3.5 lacks support for an Integrity Check. Rated high severity (CVSS 7.5), this vulnerabil

CVE-2020-13846 HIGH
7.5 Jul 14

Sylabs Singularity 3.5.0 through 3.5.3 fails to report an error in a Status Code. Rated high severity (CVSS 7.5), this v

CVE-2020-13845 HIGH
7.5 Jul 14

Sylabs Singularity 3.0 through 3.5 has Improper Validation of an Integrity Check Value. Rated high severity (CVSS 7.5),

CVE-2018-12021 MEDIUM
6.5 Jul 05

Singularity 2.3.0 through 2.5.1 is affected by an incorrect access control on systems supporting overlay file system. Ra

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy