CVE & CISA-KEV Catalog

CVE-2020-3812

MEDIUM
5.5
CVSS v3
NVD

Description

qmail-verify as used in netqmail 1.06 is prone to an information disclosure vulnerability. A local attacker can test for the existence of files and directories anywhere in the filesystem because qmail-verify runs as root and tests for the existence of files in the attacker's home directory, without dropping its privileges first.

CWE-269Improper Privilege Management

How to fix

Remediation Available
netqmailUbuntu
Fixed in:1.06-6.2~deb10u1build0.16.04.1USN-4621-1
Fixed in:1.06-6.2~deb10u1build0.18.04.1USN-4621-1
Fixed in:1.06-6.2~deb10u1build0.20.04.1USN-4556-1
qmailUbuntu
Fixed in:1.06-6.2~deb10u1build0.16.04.1USN-4621-1
Fixed in:1.06-6.2~deb10u1build0.18.04.1USN-4621-1
Fixed in:1.06-6.2~deb10u1build0.20.04.1USN-4556-1
qmail-uids-gidsUbuntu
Fixed in:1.06-6.2~deb10u1build0.20.04.1USN-4556-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

0.43%probability of exploitation in 30 days
34thpercentile

Low risk: more likely to be exploited than 34% of all known CVEs.

References

Related Vulnerabilities

Other CWE-269 (Improper Privilege Management) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2017-12635Critical9.8100%-Fix
CVE-2022-24637Critical9.899%-Fix
CVE-2017-5689Critical9.892%KEVFix
CVE-2020-3243Critical9.888%--
CVE-2024-21888High8.887%--
CVE-2022-0441Critical9.885%-Fix
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Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.