CVE-2021-43410Network attack vector

Log forgery via unneutralized HTTP parameters

Published Dec 9, 2021 · Updated Aug 4, 2024

Log injection in Apache Airavata Django Portal master builds before commit 3c5d8c7 allows remote attackers to forge logs via HTTP parameters. The console logging handler applies a formatter that leaves CR and LF characters in request-derived messages, permitting injected line breaks in log output. Unauthenticated network access is sufficient; crafted values can create misleading log entries without reported data disclosure or service interruption.

CVSS severity5.3
Medium
EPSS probability2.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Log injection in Apache Airavata Django Portal master builds before commit 3c5d8c7 allows remote attackers to forge logs via HTTP parameters. The console logging handler applies a formatter that leaves CR and LF characters in request-derived messages, permitting injected line breaks in log output. Unauthenticated network access is sufficient; crafted values can create misleading log entries without reported data disclosure or service interruption.

The record

CVE
CVE-2021-43410
Published
Dec 9, 2021
Updated
Aug 4, 2024
Vendor
The Apache Software Foundation
Product
Apache Airavata Django Portal
Classifications
CWE-116, CWE-117, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 9, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=master branch <commit 3c5d8c7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Airavata Django Portalversion=master branch <commit 3c5d8c7

Published CVSS scores

5.3NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.0NIST National Vulnerability DatabaseAV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-116Improper Encoding or Escaping of Output
CWE-117Improper Output Neutralization for Logs
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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