What is the CVSS score of CVE-2021-33038?

CVE-2021-33038 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 1.8%.

Is there a public PoC exploit available for CVE-2021-33038?

Yes, a public proof-of-concept exploit is available for CVE-2021-33038. Prioritise patching immediately. EPSS: 1.8%.

Is there a patch available for CVE-2021-33038?

Yes, a patch is available for CVE-2021-33038. Update the affected software to the latest version immediately.

Hyperkitty CVE-2021-33038

HIGH

Incorrect Default Permissions (CWE-276)

2021-05-26 cve@mitre.org

Privilege Escalation Hyperkitty Debian Linux

7.5

CVSS 3.1 · NVD

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

May 26, 2021 - 14:15 nvd

HIGH 7.5

DescriptionNVD

An issue was discovered in management/commands/hyperkitty_import.py in HyperKitty through 1.3.4. When importing a private mailing list's archives, these archives are publicly visible for the duration of the import. For example, sensitive information might be available on the web for an hour during a large migration from Mailman 2 to Mailman 3.

AnalysisAI

An issue was discovered in management/commands/hyperkitty_import.py in HyperKitty through 1.3.4. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Incorrect Default Permissions (CWE-276), which allows attackers to access resources due to overly permissive default settings. An issue was discovered in management/commands/hyperkitty_import.py in HyperKitty through 1.3.4. When importing a private mailing list's archives, these archives are publicly visible for the duration of the import. For example, sensitive information might be available on the web for an hour during a large migration from Mailman 2 to Mailman 3. Affected products include: Hyperkitty Project Hyperkitty, Debian Debian Linux. Version information: through 1.3.4..

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Set restrictive default permissions, follow principle of least privilege, review defaults during deployment.