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Vulnerability record · CVE-2009-2901 · published 28 January 2010

CVE-2009-2901: Apache tomcat permissions and access controls vulnerability

Apache · Tomcat

The autodeployment process in Apache Tomcat 5.5.0 through 5.5.28 and 6.0.0 through 6.0.20, when autoDeploy is enabled, deploys appBase files that remain from a failed undeploy, which might allow remote attackers to bypass intended authentication requirements via HTTP requests.

4.3 CVSS 2.0 Medium EPSS 8.1% · top 5.4% CWE-264 · Permissions and access controls
4.3CVSS 2.0 base score
8.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
68References
16 Jun 2026Last modified by NVD

Description

The autodeployment process in Apache Tomcat 5.5.0 through 5.5.28 and 6.0.0 through 6.0.20, when autoDeploy is enabled, deploys appBase files that remain from a failed undeploy, which might allow remote attackers to bypass intended authentication requirements via HTTP requests.

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

Affected products

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

References

LinkTags
http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2010-04/msg00001.html
http://lists.opensuse.org/opensuse-updates/2012-12/msg00089.html
http://lists.opensuse.org/opensuse-updates/2012-12/msg00090.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00037.html
http://marc.info/?l=bugtraq&m=127420533226623&w=2
http://marc.info/?l=bugtraq&m=133469267822771&w=2
http://marc.info/?l=bugtraq&m=139344343412337&w=2
http://secunia.com/advisories/38316 Vendor Advisory
http://secunia.com/advisories/38346 Vendor Advisory
http://secunia.com/advisories/38541
http://secunia.com/advisories/39317
http://secunia.com/advisories/43310
http://secunia.com/advisories/57126
http://securitytracker.com/id?1023503
http://support.apple.com/kb/HT4077
http://svn.apache.org/viewvc?rev=892815&view=rev Patch
http://svn.apache.org/viewvc?rev=902650&view=rev Patch
http://tomcat.apache.org/security-5.html PatchVendor Advisory
http://tomcat.apache.org/security-6.html PatchVendor Advisory
http://ubuntu.com/usn/usn-899-1
http://www.mandriva.com/security/advisories?name=MDVSA-2010:176
http://www.mandriva.com/security/advisories?name=MDVSA-2010:177
http://www.securityfocus.com/archive/1/509151/100/0/threaded
http://www.securityfocus.com/archive/1/516397/100/0/threaded
http://www.securityfocus.com/bid/37942
http://www.vmware.com/security/advisories/VMSA-2011-0003.html
http://www.vmware.com/support/vsphere4/doc/vsp_vc41_u1_rel_notes.html
http://www.vupen.com/english/advisories/2010/0213 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/55856
https://lists.apache.org/thread.html/06cfb634bc7bf37af7d8f760f118018746ad8efbd519c4b789ac9c2e%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/8dcaf7c3894d66cb717646ea1504ea6e300021c85bb4e677dc16b1aa%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/r3aacc40356defc3f248aa504b1e48e819dd0471a0a83349080c6bcbf%40%3Cdev.tomcat.apache.or
https://lists.apache.org/thread.html/r584a714f141eff7b1c358d4679288177bd4ca4558e9999d15867d4b5%40%3Cdev.tomcat.apache.or
http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2010-04/msg00001.html
http://lists.opensuse.org/opensuse-updates/2012-12/msg00089.html
http://lists.opensuse.org/opensuse-updates/2012-12/msg00090.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00037.html
http://marc.info/?l=bugtraq&m=127420533226623&w=2

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Source: NIST National Vulnerability Database (record CVE-2009-2901), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.