Cyber Resilience

CVE-2006-1547

Apache Struts ≤ 1.2.9

CISA KEVActive ExploitationEUVD ExploitedPublic PoC
Published
30 March 2006
Modified
16 April 2026
KEV Added
21 January 2022
Patch / advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.55 99th percentile
Risk Priority 84 floored blend · peak EPSS

Summary

CVE-2006-1547 is a high-severity Exposed Dangerous Method or Function (CWE-749) vulnerability in Apache Struts. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 1% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

The vulnerability affects ActionForm in Apache Struts versions prior to 1.2.9 when used with BeanUtils 1.7. A remote attacker can submit a multipart/form-data encoded request containing a parameter name that references the public getMultipartRequestHandler method, granting further access to internal elements of CommonsMultipartRequestHandler and BeanUtils and resulting in a denial of service. The issue is tracked as CVE-2006-1547 with a CVSS 3.1 score of 7.5 reflecting network attack vector, low complexity, and high availability impact.

Unauthenticated attackers with network access can exploit the flaw by crafting form submissions that invoke the exposed method chain, causing the application to fail without requiring user interaction or elevated privileges. This produces an availability-only impact with no confidentiality or integrity consequences.

Advisories referenced in the CVE entry, including Apache Bugzilla 38534, SUSE security announcements, and Secunia reports, document the affected versions and point to the 1.2.9 release as the corrective version.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

ActionForm in Apache Software Foundation (ASF) Struts before 1.2.9 with BeanUtils 1.7 allows remote attackers to cause a denial of service via a multipart/form-data encoded form with a parameter name that references the public getMultipartRequestHandler method, which provides further access…

more

to elements in the CommonsMultipartRequestHandler implementation and BeanUtils.

CWE(s)
KEV Date Added
21 January 2022

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2017-9791Same product: Apache Strutsboth on KEV
CVE-2012-0391Same product: Apache Strutsboth on KEV
CVE-2021-31805Same product: Apache Struts
CVE-2024-32113Same vendor: Apacheboth on KEV
CVE-2018-19322Shared CWE-749both on KEV
CVE-2010-1428Shared CWE-749both on KEV
CVE-2010-0738Shared CWE-749both on KEV
CVE-2024-45195Same vendor: Apacheboth on KEV
CVE-2020-17530Same product: Apache Strutsboth on KEV
CVE-2025-68493Same product: Apache Struts

Affected Assets

apache
struts
≤ 1.2.9

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)
  • 4 hardening rules · 2 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V8.2.1

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-749

Explicitly prohibiting dangerous or unnecessary functions and services prevents exposure of methods that could be directly exploited.

addresses: CWE-749

Minimal functionality removes or avoids exposure of dangerous methods and functions.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-05 full match
prevents

Enforcing least-privilege authorization directly prevents unrestricted dangerous API methods.

PR.PS-06 mostly match
prevents

Secure SDLC practices stop developers from exposing dangerous functions in the first place.

ID.RA-01 partial match
prevents

Vulnerability identification processes will surface exposed dangerous methods during assessment.

PR.IR-01 partial match
prevents

Logical access controls at the network/environment layer can limit reachability of exposed functions.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing can detect exposed dangerous functions, but does not prevent their initial introduction.

degrades

Restricting privileged utility programs reduces exposure of dangerous functions, but does not eliminate the underlying weakness.

prevents

Privileged access rights limit who can invoke dangerous methods, but do not address whether the method itself should exist.

prevents

Secure development life cycle requires removal or protection of dangerous APIs during design and coding.

prevents

Application security requirements can mandate that dangerous methods are not exposed in interfaces.

prevents

Secure architecture principles discourage exposing dangerous functions, but do not guarantee their absence.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).

Ubuntu 22.04 (3 rules)
  • V-260559 Ubuntu 22.04 LTS must ensure only users who need access to security functions are part of sudo group. prevents CWE-749
  • V-260529 Ubuntu 22.04 LTS must be configured so that remote X connections are disabled, unless to fulfill documented and validated mission requirements. prevents CWE-749
  • V-260557 Ubuntu 22.04 LTS must be configured to use AppArmor. prevents CWE-749
Ubuntu 24.04 (1 rule)
  • V-270748 Ubuntu 24.04 LTS must ensure only users who need access to security functions are part of sudo group. prevents CWE-749

References