• Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
MUST READ

Qilin ransomware claimed responsibility for the attack on the beer giant Asahi

 | 

DragonForce, LockBit, and Qilin, a new triad aims to dominate the ransomware landscape

 | 

DraftKings thwarts credential stuffing attack, but urges password reset and MFA

 | 

Redis patches 13-Year-Old Lua flaw enabling Remote Code Execution

 | 

U.S. CISA adds Synacor Zimbra Collaboration Suite (ZCS) flaw to its Known Exploited Vulnerabilities catalog

 | 

GoAnywhere MFT zero-day used by Storm-1175 in Medusa ransomware campaigns

 | 

CrowdStrike ties Oracle EBS RCE (CVE-2025-61882) to Cl0p attacks began Aug 9, 2025

 | 

Discord discloses third-party breach affecting customer support data

 | 

Oracle patches critical E-Business Suite flaw exploited by Cl0p hackers

 | 

LinkedIn sues ProAPIs for $15K/Month LinkedIn data scraping scheme

 | 

Zimbra users targeted in zero-day exploit using iCalendar attachments

 | 

Reading the ENISA Threat Landscape 2025 report

 | 

Ghost in the Cloud: Weaponizing AWS X-Ray for Command & Control

 | 

SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 65

 | 

Security Affairs newsletter Round 544 by Pierluigi Paganini – INTERNATIONAL EDITION

 | 

GreyNoise detects 500% surge in scans targeting Palo Alto Networks portals

 | 

U.S. CISA adds Smartbedded Meteobridge, Samsung, Juniper ScreenOS, Jenkins, and GNU Bash flaws to its Known Exploited Vulnerabilities catalog

 | 

ShinyHunters Launches Data Leak Site: Trinity of Chaos Announces New Ransomware Victims

 | 

ProSpy, ToSpy malware pose as Signal and ToTok to steal data in UAE

 | 

Google warns of Cl0p extortion campaign against Oracle E-Business users

 | 
  • Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
  • Home
  • Breaking News
  • Hacking
  • The CVE-2017-5638 Apache Struts 2 command execution flaw affects Cisco products

The CVE-2017-5638 Apache Struts 2 command execution flaw affects Cisco products

Pierluigi Paganini March 13, 2017

On Friday, Cisco confirmed that at least some of its products are affected by an Apache Struts 2 command execution vulnerability tracked as CVE-2017-5638.

The CVE-2017-5638 remote code execution zero-day has been exploiting by attackers in the wild, it affects Struts 2.3.5 through 2.3.31 and Struts 2.5 through 2.5.10.

According to the experts from Cisco Talos, the flaw affects the Jakarta-based file upload Multipart parser under Apache Struts 2.

Tinfoil Security has published an online tool that allows website owners to check if they are vulnerable to CVE-2017-5638 attacks.

The issue was first spotted by the Chinese developer Nike Zheng, the attack sends an invalid Content-Type value to the uploader throwing an exception creating the condition for the remote code execution.

The issue is documented at Rapid7’s Metasploit Framework GitHub site and attackers in the wild are exploiting a publicly available PoC code that triggers the vulnerability.

“Talos has observed a new Apache vulnerability that is being actively exploited in the wild. The vulnerability (CVE-2017-5638) is a remote code execution bug that affects the Jakarta Multipart parser in Apache Struts, referenced in this security advisory.” reads the security advisory published by the Talos group. “Talos began investigating for exploitation attempts and found a high number of exploitation events.” 

Now Cisco confirmed that the vulnerability affects the Cisco Identity Services Engine (ISE), the Prime Service Catalog Virtual Appliance, and the Unified SIP Proxy Software.

CVE-2017-5638 CISCO Struts 2 flaw

Cisco published a list of dozens of products that are not affected, but the experts are conducting further analysis to assess all the potentially impacted products.

“Cisco is investigating its product line to determine which products may be affected by this vulnerability and the impact on each affected product. Please refer to the Vulnerable Products andProducts Confirmed Not Vulnerable sections of this advisory for information about whether a product is affected.” reads the security advisory published by CISCO.

“The Vulnerable Products section includes Cisco bug IDs for each affected product. The bugs are accessible through the Cisco Bug Search Tool and contain additional platform-specific information, including workarounds (if available) and fixed software releases.”

At the time the advisory was published, Cisco has not found any evidence of attacks targeting its products, but the company has warned users that a PoC exploit is publicly available.

The experts also observed malicious attacks which turn off firewall processes on the target servers and then drop malicious payloads such as IRC bouncers and DDoS bots.

According to the security Rapid7, the majority of malicious traffic comes from two machines located in Zhengzhou and Shanghai, China.

“Based on the traffic we are seeing at this time it would appear that the bulk of the non-targeted malicious traffic appears to be limited attacks from a couple of sources. This could change significantly tomorrow if attackers determine that there is value in exploiting this vulnerability.” reads the blog post published by Rapid 7.

Security vendors have started releasing  firewall rules that could be used by administrators to protect their systems and block the attacks.

[adrotate banner=”9″]

Pierluigi Paganini

(Security Affairs – Apache Struts 2, CVE-2017-5638)


facebook linkedin twitter

you might also like

Pierluigi Paganini October 08, 2025
Qilin ransomware claimed responsibility for the attack on the beer giant Asahi
Read more
Pierluigi Paganini October 08, 2025
DragonForce, LockBit, and Qilin, a new triad aims to dominate the ransomware landscape
Read more

leave a comment

newsletter

Subscribe to my email list and stay
up-to-date!

    recent articles

    Qilin ransomware claimed responsibility for the attack on the beer giant Asahi

    Cyber Crime / October 08, 2025

    DragonForce, LockBit, and Qilin, a new triad aims to dominate the ransomware landscape

    Cyber Crime / October 08, 2025

    DraftKings thwarts credential stuffing attack, but urges password reset and MFA

    Security / October 08, 2025

    Redis patches 13-Year-Old Lua flaw enabling Remote Code Execution

    Security / October 08, 2025

    U.S. CISA adds Synacor Zimbra Collaboration Suite (ZCS) flaw to its Known Exploited Vulnerabilities catalog

    Hacking / October 07, 2025

    To contact me write an email to:

    Pierluigi Paganini :
    pierluigi.paganini@securityaffairs.co

    LEARN MORE

    QUICK LINKS

    • Home
    • Cyber Crime
    • Cyber warfare
    • APT
    • Data Breach
    • Deep Web
    • Digital ID
    • Hacking
    • Hacktivism
    • Intelligence
    • Internet of Things
    • Laws and regulations
    • Malware
    • Mobile
    • Reports
    • Security
    • Social Networks
    • Terrorism
    • ICS-SCADA
    • POLICIES
    • Contact me

    Copyright@securityaffairs 2024

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
    Cookie SettingsAccept All
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities...
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
    Non-necessary
    Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
    SAVE & ACCEPT