CVE-2017-5638
Exploited in the wild. In CISA KEV since 2021‑11‑03. Fixed versions are out.
What to do
Find your product and version, then upgrade to the build on the right.
- Apache Software Foundation Apache StrutsAffected: 2.3.x before 2.3.32Upgrade to: not statedAffected: 2.5.x before 2.5.10.1Upgrade to: not statedStated by: CVE record
- Maven org.apache.struts:struts2-coreAffected: ≥ 2.3.0, < 2.3.32Upgrade to: 2.3.32Stated by: GitHub advisory
- Arubanetworks Clearpass Policy ManagerAffected: < 6.6.5Upgrade to: 6.6.5Stated by: NVD
Versions as the sources state them. Full version matrix after sign-in
Coverage timeline
0 publishersAdded to CISA KEV catalog
Sourced from public security reporting — each date is when it was published, not when it happened. 1 further article named this CVE in wider roundups without reporting it as a distinct event.
What it is
From the CVE record
The Jakarta Multipart parser in Apache Struts 2 2.3.x before 2.3.32 and 2.5.x before 2.5.10.1 has incorrect exception handling and error-message generation during file-upload attempts, which allows remote attackers to execute arbitrary commands via a crafted Content-Type, Content-Disposition, or Content-Length HTTP header, as exploited in the wild in March 2017 with a Content-Type header containing a #cmd= string.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Listed as exploited in the wild since 2021-11-03.
US federal agencies must remediate by 2022-05-03.
Known use in ransomware campaigns.
Apply updates per vendor instructions.
- Public exploits
4 sources with a proof of concept or module.
Exploit links, PoCs and Metasploit modules after sign-in- EPSS
100% chance of exploitation activity in the next 30 days, which ranks it in the 99th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
A public exploit existed 46 days before the patch.
- OpenVAS check added
- Patch availableworkaround available, record updated
- Public exploit / PoCsource: exploit-dbnuclei check added
- Added to CISA KEVransomware campaign
- Publishedweakness classified
Affected products
And 4 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Scored 9.8 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
Sources
References in the record
- nmap.org/nsedoc/scripts/http-vuln-cve2017-5638.html
- arubanetworks.com/assets/alert/ARUBA-PSA-2017-002.txt
- arstechnica.com/security/2017/03/critical-vulnerability-under-massive-attack-imperils-high-impact-sites/
And 49 more references. See all after sign-in
In the news
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