CVE-2020-11034
published 2020-05-05CVE-2020-11034: In GLPI before version 9.4.6, there is a vulnerability that allows bypassing the open redirect protection based which is based on a regexp. This is fixed in…
PriorityP342medium6.1CVSS 3.1
AVNACLPRNUIRSCCLILAN
EXPLOIT
EPSS
7.61%
93.8th percentile
In GLPI before version 9.4.6, there is a vulnerability that allows bypassing the open redirect protection based which is based on a regexp. This is fixed in version 9.4.6.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| glpi-project | glpi | < 9.4.6 | 9.4.6 |
Detection & IOCsextracted from sources · hover to see the quote
url/index.php?redirect=/\/interact.sh/
url/index.php?redirect=//interact.sh
regex(?m)^(?:Location\s*?:\s*?)(?:https?://|//)?(?:[a-zA-Z0-9\-_]*\.)?interact\.sh(?:\s*?)$
- →Probe the GLPI login endpoint with a double-slash or backslash-prefixed redirect parameter to bypass the regexp-based open redirect protection; a vulnerable instance will issue a Location header pointing to the external host.
- →Match the HTTP response Location header against the regex to confirm exploitation; the bypass relies on the regexp failing to catch slash-prefixed or backslash-prefixed redirect values.
- →Fingerprint GLPI instances via Shodan/FOFA using the page title or favicon hash before probing for the vulnerability.
- →The vulnerability is classified under CWE-185 (Incorrect Regular Expression) — detection should focus on regexp-bypass payloads using double-slash (`//`) or backslash-slash (`\/`) prefixes in the `redirect` parameter.
- ·The Nuclei template requires exactly 2 HTTP requests (one per bypass payload); both paths target the same `index.php?redirect=` parameter but use different bypass syntaxes (`/\/` vs `//`).
- ·Only GLPI versions strictly before 9.4.6 are vulnerable; version 9.4.6 patches the regexp. ↗
CVSS provenance
nvdv3.16.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
nvdv2.05.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:N
osv6.1MEDIUM
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Nuclei
GLPI <9.4.6 - Open Redirect
nuclei·CVSS 6.1
CVE-2020-11034 [MEDIUM] GLPI <9.4.6 - Open Redirect
GLPI <9.4.6 - Open Redirect
GLPI prior 9.4.6 contains an open redirect vulnerability based on a regexp.
Template:
id: CVE-2020-11034
info:
name: GLPI <9.4.6 - Open Redirect
author: pikpikcu
severity: medium
description: GLPI prior 9.4.6 contains an open redirect vulnerability based on a regexp.
impact: |
An attacker can exploit this vulnerability to redirect users to malicious websites, leading to phishing attacks.
remediation: Upgrade to version 9.4.6 or later.
reference:
- https://github.com/glpi-project/glpi/security/advisories/GHSA-gxv6-xq9q-37hg
- https://github.com/glpi-project/glpi/archive/9.4.6.zip
- https://nvd.nist.gov/vuln/detail/CVE-2020-11034
- https://lists.fedoraproject.org/archives/list/[email protected]/message/5WQMONZRWLWOXMHMYWR7A5Q5JJERPMVC/
-
Bugzilla
CVE-2020-11034 glpi: bypass open redirect protection based on a regexp
bugzilla·2020-05-11·CVSS 6.1
CVE-2020-11034 [MEDIUM] CVE-2020-11034 glpi: bypass open redirect protection based on a regexp
CVE-2020-11034 glpi: bypass open redirect protection based on a regexp
In GLPI before version 9.4.6, there is a vulnerability that allows bypassing the open redirect protection based which is based on a regexp. This is fixed in version 9.4.6.
Reference:
https://github.com/glpi-project/glpi/security/advisories/GHSA-gxv6-xq9q-37hg
Discussion:
Created glpi tracking bugs for this issue:
Affects: epel-7 [bug 1834503]
Affects: fedora-all [bug 1834505]
---
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
Bugzilla
CVE-2020-11034 glpi: bypass open redirect protection based on a regexp [fedora-all]
bugzilla·2020-05-11·CVSS 6.1
CVE-2020-11034 [MEDIUM] CVE-2020-11034 glpi: bypass open redirect protection based on a regexp [fedora-all]
CVE-2020-11034 glpi: bypass open redirect protection based on a regexp [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported ve
Bugzilla
CVE-2020-11034 glpi: bypass open redirect protection based on a regexp [epel-7]
bugzilla·2020-05-11·CVSS 6.1
CVE-2020-11034 [MEDIUM] CVE-2020-11034 glpi: bypass open redirect protection based on a regexp [epel-7]
CVE-2020-11034 glpi: bypass open redirect protection based on a regexp [epel-7]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-7.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
Discussion:
Use the following template to for the 'fe
https://github.com/glpi-project/glpi/security/advisories/GHSA-gxv6-xq9q-37hghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5WQMONZRWLWOXMHMYWR7A5Q5JJERPMVC/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q4BG2UTINBVV7MTJRXKBQ26GV2UINA6L/https://github.com/glpi-project/glpi/security/advisories/GHSA-gxv6-xq9q-37hghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5WQMONZRWLWOXMHMYWR7A5Q5JJERPMVC/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q4BG2UTINBVV7MTJRXKBQ26GV2UINA6L/
2020-05-05
Published