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CVE-2018-11784: URL Redirection to Untrusted Site ('Open Redirect')

October 17, 2018 (updated July 14, 2021)

When the default servlet in Apache Tomcat versions 9.0.0.M1 to 9.0.11, 8.5.0 to 8.5.33 and 7.0.23 to 7.0.90 returned a redirect to a directory (e.g. redirecting to ‘/foo/’ when the user requested ‘/foo’) a specially crafted URL could be used to cause the redirect to be generated to any URI of the attackers choice.

References

  • lists.opensuse.org/opensuse-security-announce/2019-06/msg00030.html
  • lists.opensuse.org/opensuse-security-announce/2019-07/msg00056.html
  • packetstormsecurity.com/files/163456/Apache-Tomcat-9.0.0M1-Open-Redirect.html
  • www.securityfocus.com/bid/105524
  • access.redhat.com/errata/RHSA-2019:0130
  • access.redhat.com/errata/RHSA-2019:0131
  • access.redhat.com/errata/RHSA-2019:0485
  • access.redhat.com/errata/RHSA-2019:1529
  • github.com/advisories/GHSA-5q99-f34m-67gc
  • kc.mcafee.com/corporate/index?page=content&id=SB10284
  • lists.apache.org/thread.html/1dd0a59c1295cc08ce4c9e7edae5ad2268acc9ba55adcefa0532e5ba@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/23134c9b5a23892a205dc140cdd8c9c0add233600f76b313dda6bd75@%3Cannounce.tomcat.apache.org%3E
  • lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/5c0e00fd31efc11e147bf99d0f03c00a734447d3b131ab0818644cdb@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/e85e83e9954f169bbb77b44baae5a33d8de878df557bb32b7f793661@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/eb6efa8d59c45a7a9eff94c4b925467d3b3fec8ba7697f3daa314b04@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c@%3Cdev.tomcat.apache.org%3E
  • lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a@%3Cdev.tomcat.apache.org%3E
  • lists.debian.org/debian-lts-announce/2018/10/msg00005.html
  • lists.debian.org/debian-lts-announce/2018/10/msg00006.html
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BZ4PX4B3QTKRM35VJAVIEOPZAF76RPBP/
  • nvd.nist.gov/vuln/detail/CVE-2018-11784
  • seclists.org/bugtraq/2019/Dec/43
  • security.netapp.com/advisory/ntap-20181014-0002/
  • usn.ubuntu.com/3787-1/
  • www.debian.org/security/2019/dsa-4596
  • www.oracle.com/security-alerts/cpuapr2020.html
  • www.oracle.com/security-alerts/cpujan2020.html
  • www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
  • www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
  • www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
  • www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

Code Behaviors & Features

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Affected versions

All versions starting from 8.5.0 before 8.5.34, all versions starting from 7.0.23 before 7.0.91, all versions starting from 9.0.0 before 9.0.12

Fixed versions

  • 8.5.34
  • 8.5.34
  • 9.0.12

Solution

Upgrade to versions 8.5.34, 8.5.34, 9.0.12 or above.

Impact 4.3 MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Learn more about CVSS

Weakness

  • CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

Source file

maven/org.apache.tomcat.embed/tomcat-embed-core/CVE-2018-11784.yml

Spotted a mistake? Edit the file on GitLab.

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