CVE-2018-1285

Log4net vulnerability

CVSS

9.8

EPSS

17.4%

EPSS pct

97th

Exploited

No known

Apache log4net versions before 2.0.10 do not disable XML external entities when parsing log4net configuration files. This allows for XXE-based attacks in applications that accept attacker-controlled log4net configuration files.

Affected vendor

Apache

Affected product

Log4net

CVSS vector

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

Weakness type (CWE)

CWE-611 — XML External Entity (XXE) Reference

Published

2020-05-11

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 17.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2018-1285

Confirm whether Apache Log4net is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2018-1285.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-1285

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-1285 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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