Is CVE-2020-28008 in the CISA KEV catalog?

No. CVE-2020-28008 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-28008?

CVE-2020-28008 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2020-28008?

CVE-2020-28008 has an EPSS score of 0.41% (33th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-28008?

Upgrade exim4 on debian 11 to 4.94.2-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2020-28008

HIGH

7.8

CVSS v3

NVD

Description

Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. Because Exim operates as root in the spool directory (owned by a non-root user), an attacker can write to a /var/spool/exim4/input spool header file, in which a crafted recipient address can indirectly lead to command execution.

CWE-269Improper Privilege Management

How to fix

Remediation Available

exim4Debian

Fixed in:4.94.2-1CVE-2020-28008

exim4Ubuntu

Fixed in:4.82-3ubuntu2.4+esm3USN-4934-2

Fixed in:4.86.2-2ubuntu2.6+esm1USN-4934-2

Fixed in:4.90.1-1ubuntu1.8USN-4934-1

Fixed in:4.93-13ubuntu1.5USN-4934-1

exim4-baseUbuntu

Fixed in:4.82-3ubuntu2.4+esm3USN-4934-2

Fixed in:4.86.2-2ubuntu2.6+esm1USN-4934-2

Fixed in:4.90.1-1ubuntu1.8USN-4934-1

Fixed in:4.93-13ubuntu1.5USN-4934-1

exim4-daemon-heavyUbuntu

Fixed in:4.82-3ubuntu2.4+esm3USN-4934-2

Fixed in:4.86.2-2ubuntu2.6+esm1USN-4934-2

Fixed in:4.90.1-1ubuntu1.8USN-4934-1

Fixed in:4.93-13ubuntu1.5USN-4934-1

exim4-daemon-lightUbuntu

Fixed in:4.82-3ubuntu2.4+esm3USN-4934-2

Fixed in:4.86.2-2ubuntu2.6+esm1USN-4934-2

Fixed in:4.90.1-1ubuntu1.8USN-4934-1

Fixed in:4.93-13ubuntu1.5USN-4934-1

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

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.41%probability of exploitation in 30 days

33rdpercentile

Low risk: more likely to be exploited than 33% of all known CVEs.

References

Vendor Advisory1

exim.org

Related Vulnerabilities

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

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-12635	Critical	9.8	100%	-	Fix
CVE-2022-24637	Critical	9.8	99%	-	Fix
CVE-2017-5689	Critical	9.8	92%	KEV	Fix
CVE-2020-3243	Critical	9.8	88%	-	-
CVE-2024-21888	High	8.8	87%	-	-
CVE-2022-0441	Critical	9.8	85%	-	Fix

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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.