Security 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
View 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 99.0th percentile
Risk Priority 84 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

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 Junk Data (T1001.001); ranked in the top 1.0% 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)

A01:2025 Broken Access Control

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)
NVD-CWE-OtherCWE-749
KEV Date Added
21 January 2022

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001.001 Junk Data Command And Control
Adversaries may add junk data to protocols used for command and control to make detection more difficult.
attack.mitre.org →
T1003.007 Proc Filesystem Credential Access
Adversaries may gather credentials from the proc filesystem or `/proc`.
attack.mitre.org →
T1010 Application Window Discovery Discovery
Adversaries may attempt to get a listing of open application windows.
attack.mitre.org →
T1016.002 Wi-Fi Discovery Discovery
Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.
attack.mitre.org →
T1025 Data from Removable Media Collection
Adversaries may search connected removable media on computers they have compromised to find files of interest.
attack.mitre.org →
T1027.002 Software Packing Stealth
Adversaries may perform software packing or virtual machine software protection to conceal their code.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2012-0391Same product: Apache Strutsboth on KEV
CVE-2017-9791Same product: Apache Strutsboth on KEV
CVE-2021-31805Same product: Apache Struts
CVE-2016-3088Same vendor: Apacheboth on KEV
CVE-2026-104711Same product: Apache Struts
CVE-2020-13927Same vendor: Apacheboth on KEV
CVE-2026-104712Same product: Apache Struts
CVE-2023-41835Same product: Apache Struts
CVE-2023-34396Same product: Apache Struts
CVE-2024-45195Same vendor: Apacheboth on KEV

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.

CM-7 Least Functionality
addresses: CWE-749

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

SC-25 Thin Nodes
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.

ID.RA-01 partial match
blocks

Vulnerability identification processes will surface exposed dangerous methods during assessment.

PR.AA-05 partial match
blocks

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

PR.IR-01 partial match
blocks

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

PR.PS-06 partial match
blocks

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

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.

A.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

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` (higher-evidence 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. blocks 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. blocks CWE-749
  • V-260557 Ubuntu 22.04 LTS must be configured to use AppArmor. blocks 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. blocks CWE-749

References