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Vulnerability record · CVE-2009-4611 · published 13 January 2010

CVE-2009-4611: Mortbay jetty improper input validation vulnerability

MMortbay · Jetty

Mort Bay Jetty 6.x through 6.1.22 and 7.0.0 writes backtrace data without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator, related to (1) a string value in the Age parameter to the default URI for the Cookie Dump Servlet in test-jetty-webapp/src/main/java/com/acme/CookieDump.java under cookie/, (2) an alphabetic value in the A parameter to jsp/expr.jsp, or (3) an alphabetic value in the Content-Length HTTP header to an arbitrary application.

7.5 CVSS 2.0 High EPSS 3.2% · top 12.2% CWE-20 · Improper input validation
7.5CVSS 2.0 base score
3.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

Mort Bay Jetty 6.x through 6.1.22 and 7.0.0 writes backtrace data without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator, related to (1) a string value in the Age parameter to the default URI for the Cookie Dump Servlet in test-jetty-webapp/src/main/java/com/acme/CookieDump.java under cookie/, (2) an alphabetic value in the A parameter to jsp/expr.jsp, or (3) an alphabetic value in the Content-Length HTTP header to an arbitrary application.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/archive/1/508830/100/0/threaded
http://www.ush.it/team/ush/hack-jetty6x7x/jetty-adv.txt Exploit
http://www.ush.it/team/ush/hack_httpd_escape/adv.txt Exploit
http://www.securityfocus.com/archive/1/508830/100/0/threaded
http://www.ush.it/team/ush/hack-jetty6x7x/jetty-adv.txt Exploit
http://www.ush.it/team/ush/hack_httpd_escape/adv.txt Exploit

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

6.1CVE-2009-5048Mortbay jetty cross-site scripting vulnerabilityCookie Dump Servlet stored XSS vulnerability in jetty though 6.1.20.EPSS 1.6%6.1CVE-2009-5049Mortbay jetty cross-site scripting vulnerabilityWebApp JSP Snoop page XSS in jetty though 6.1.21.EPSS 1.6%5.3CVE-2011-4461Oracle sun storage common array manager vulnerabilityJetty 8.1.0.RC2 and earlier computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which al…EPSS 4.9%5.0CVE-2009-4609Mortbay jetty information exposure vulnerabilityThe Dump Servlet in Mort Bay Jetty 6.x and 7.0.0 allows remote attackers to obtain sensitive information about internal variables and other data via …EPSS 1.8%5.0CVE-2009-1523Mortbay jetty path traversal vulnerabilityDirectory traversal vulnerability in the HTTP server in Mort Bay Jetty 5.1.14, 6.x before 6.1.17, and 7.x through 7.0.0.M2 allows remote attackers to…EPSS 26%5.0CVE-2005-3747Mortbay jetty information exposure vulnerabilityUnspecified vulnerability in Jetty before 5.1.6 allows remote attackers to obtain source code of JSP pages, possibly involving requests for .jsp file…EPSS 4.4%4.3CVE-2009-4610Mortbay jetty cross-site scripting vulnerabilityMultiple cross-site scripting (XSS) vulnerabilities in Mort Bay Jetty 6.x and 7.0.0 allow remote attackers to inject arbitrary web script or HTML via…EPSS 3.0%4.3CVE-2009-4612Mortbay jetty cross-site scripting vulnerabilityMultiple cross-site scripting (XSS) vulnerabilities in the WebApp JSP Snoop page in Mort Bay Jetty 6.1.x through 6.1.21 allow remote attackers to inj…EPSS 3.3%

Source: NIST National Vulnerability Database (record CVE-2009-4611), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.