CVE-2019-10098
published 2019-09-25CVE-2019-10098: In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and…
PriorityP279medium6.1CVSS 3.1
AVNACLPRNUIRSCCLILAN
ITWEXPLOITVulnCheck KEV
Exploited in the wild
EPSS
73.98%
99.4th percentile
In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an unexpected URL within the request URL.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache | http_server | 2.4.0 – 2.4.39 | — |
| apache | httpd | — | — |
| debian | apache2 | < apache2 2.4.41-1 (bookworm) | apache2 2.4.41-1 (bookworm) |
Detection & IOCsextracted from sources · hover to see the quote
- →Search Apache httpd configuration files for mod_rewrite directives that may be vulnerable; use the command: grep -R '^\s*Rewrite' /etc/httpd/ ↗
- ·Vulnerability only affects Apache HTTP Server instances where mod_rewrite is enabled and self-referential Rewrite rules are configured; not all Apache deployments are vulnerable. ↗
- ·The exploit requires the server to be configured with specific mod_rewrite rules that perform self-referential redirects; generic mod_rewrite usage is not necessarily vulnerable. ↗
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
vulncheck6.1MEDIUM
vendor_apache6.1LOW
vendor_debian6.1MEDIUM
vendor_redhat6.1MEDIUM
vendor_ubuntu4.2MEDIUM
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Ubuntu
Apache HTTP Server regression
vendor_ubuntu·2019-09-17·CVSS 4.2
[MEDIUM] Apache HTTP Server regression
Title: Apache HTTP Server regression
Summary: USN-4113-1 introduced a regression in Apache.
USN-4113-1 fixed vulnerabilities in the Apache HTTP server.
Unfortunately, that update introduced a regression when proxying
balancer manager connections in some configurations. This update
fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Stefan Eissing discovered that the HTTP/2 implementation in Apache
did not properly handle upgrade requests from HTTP/1.1 to HTTP/2 in
some situations. A remote attacker could use this to cause a denial
of service (daemon crash). This issue only affected Ubuntu 18.04 LTS
and Ubuntu 19.04. (CVE-2019-0197)
Craig Young discovered that a memory overwrite error existed in
Apache when performing HTTP/2 very early pushes in some situ
Ubuntu
Apache HTTP Server vulnerabilities
vendor_ubuntu·2019-08-29·CVSS 4.2
CVE-2019-0197 [MEDIUM] Apache HTTP Server vulnerabilities
Title: Apache HTTP Server vulnerabilities
Summary: Several security issues were fixed in Apache.
Stefan Eissing discovered that the HTTP/2 implementation in Apache
did not properly handle upgrade requests from HTTP/1.1 to HTTP/2 in
some situations. A remote attacker could use this to cause a denial
of service (daemon crash). This issue only affected Ubuntu 18.04 LTS
and Ubuntu 19.04. (CVE-2019-0197)
Craig Young discovered that a memory overwrite error existed in
Apache when performing HTTP/2 very early pushes in some situations. A
remote attacker could use this to cause a denial of service (daemon
crash). This issue only affected Ubuntu 18.04 LTS and Ubuntu 19.04.
(CVE-2019-10081)
Craig Young discovered that a read-after-free error existed in the
HTTP/2 implementation in Apache during
Red Hat
httpd: mod_rewrite potential open redirect
vendor_redhat·2019-08-14·CVSS 6.1
CVE-2019-10098 [MEDIUM] httpd: mod_rewrite potential open redirect
httpd: mod_rewrite potential open redirect
In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an unexpected URL within the request URL.
A vulnerability was discovered in Apache httpd, in mod_rewrite. Certain self-referential mod_rewrite rules could be fooled by encoded newlines, causing them to redirect to an unexpected location. An attacker could abuse this flaw in a phishing attack or as part of a client-side attack on browsers.
Mitigation: This flaw requires the use of certain Rewrite configuration directives. The following command can be used to search for possible vulnerable configurations:
grep -R '^\s*Rewrite' /etc/httpd/
See https://httpd.apache.org/doc
Debian
CVE-2019-10098: apache2 - In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite tha...
vendor_debian·2019·CVSS 6.1
CVE-2019-10098 [MEDIUM] CVE-2019-10098: apache2 - In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite tha...
In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an unexpected URL within the request URL.
Scope: local
bookworm: resolved (fixed in 2.4.41-1)
bullseye: resolved (fixed in 2.4.41-1)
forky: resolved (fixed in 2.4.41-1)
sid: resolved (fixed in 2.4.41-1)
trixie: resolved (fixed in 2.4.41-1)
Apache
Apache httpd: CVE-2019-10098
vendor_apache·CVSS 6.1
CVE-2019-10098 [LOW] Apache httpd: CVE-2019-10098
Apache httpd: CVE-2019-10098
Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an an unexpected URL within the request URL. Acknowledgements: The issue was discovered by Yukitsugu Sasaki Reported to security team 2019-03-26 Issue public 2019-08-14 Update 2.4.41 released 2019-08-14 Affects 2.4.39, 2.4.38, 2.4.37, 2.4.35, 2.4.34, 2.4.33, 2.4.30, 2.4.29, 2.4.28, 2.4.27, 2.4.26, 2.4.25, 2.4.23, 2.4.20, 2.4.18, 2.4.17, 2.4.16, 2.4.12, 2.4.10, 2.4.9, 2.4.7, 2.4.6, 2.4.4, 2.4.3, 2.4.2, 2.4.1, 2.4.0
Severity: low
GHSA
GHSA-hm8m-x559-v4fw: In Apache HTTP server 2
ghsa_unreviewed·2022-05-24
CVE-2019-10098 [MEDIUM] CWE-601 GHSA-hm8m-x559-v4fw: In Apache HTTP server 2
In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an unexpected URL within the request URL.
OSV
CVE-2019-10098: In Apache HTTP server 2
osv·2019-09-25·CVSS 6.1
CVE-2019-10098 [MEDIUM] CVE-2019-10098: In Apache HTTP server 2
In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an unexpected URL within the request URL.
OSV
apache2 regression
osv·2019-09-17·CVSS 4.2
[MEDIUM] apache2 regression
apache2 regression
USN-4113-1 fixed vulnerabilities in the Apache HTTP server.
Unfortunately, that update introduced a regression when proxying
balancer manager connections in some configurations. This update
fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Stefan Eissing discovered that the HTTP/2 implementation in Apache
did not properly handle upgrade requests from HTTP/1.1 to HTTP/2 in
some situations. A remote attacker could use this to cause a denial
of service (daemon crash). This issue only affected Ubuntu 18.04 LTS
and Ubuntu 19.04. (CVE-2019-0197)
Craig Young discovered that a memory overwrite error existed in
Apache when performing HTTP/2 very early pushes in some situations. A
remote attacker could use this to cause a denial of service (dae
OSV
apache2 vulnerabilities
osv·2019-08-29·CVSS 4.2
CVE-2019-0197 [MEDIUM] apache2 vulnerabilities
apache2 vulnerabilities
Stefan Eissing discovered that the HTTP/2 implementation in Apache
did not properly handle upgrade requests from HTTP/1.1 to HTTP/2 in
some situations. A remote attacker could use this to cause a denial
of service (daemon crash). This issue only affected Ubuntu 18.04 LTS
and Ubuntu 19.04. (CVE-2019-0197)
Craig Young discovered that a memory overwrite error existed in
Apache when performing HTTP/2 very early pushes in some situations. A
remote attacker could use this to cause a denial of service (daemon
crash). This issue only affected Ubuntu 18.04 LTS and Ubuntu 19.04.
(CVE-2019-10081)
Craig Young discovered that a read-after-free error existed in the
HTTP/2 implementation in Apache during connection shutdown. A remote
attacker could use this to possibly cause a
VulnCheck
Apache HTTP Server URL Redirection to Untrusted Site ('Open Redirect')
vulncheck·2019·CVSS 6.1
CVE-2019-10098 [MEDIUM] Apache HTTP Server URL Redirection to Untrusted Site ('Open Redirect')
Apache HTTP Server URL Redirection to Untrusted Site ('Open Redirect')
In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an unexpected URL within the request URL.
Affected: Apache HTTP Server
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Exploitation References: https://www.trendmicro.com/en_us/research/22/b/recent-cyberattacks-open-source-web-servers.html
No detection rules found.
Exploit-DB
Apache Httpd mod_rewrite - Open Redirects
exploitdb·2019-10-14
CVE-2019-10098 Apache Httpd mod_rewrite - Open Redirects
Apache Httpd mod_rewrite - Open Redirects
---
Normal URLs like http://redirect.local/test will be forwared to https://redirect.local/test. But by using newlines (CVE 2019-10098), we can redirect somewhere else (i.e. to `https://redirect.local.evilwebsite.com`):
```
curl -Ik 'https://redirect.local/%0a.evilwebsite.com' --path-as-is
HTTP/2 302
date: Mon, 28 Oct 2019 03:36:58 GMT
content-type: text/html; charset=iso-8859-1
location: https://redirect.local.evilwebsite.com
```
Nuclei
Apache HTTP server v2.4.0 to v2.4.39 - Open Redirect
nuclei·CVSS 6.1
CVE-2019-10098 [MEDIUM] Apache HTTP server v2.4.0 to v2.4.39 - Open Redirect
Apache HTTP server v2.4.0 to v2.4.39 - Open Redirect
In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an unexpected URL within the request URL.
Template:
id: CVE-2019-10098
info:
name: Apache HTTP server v2.4.0 to v2.4.39 - Open Redirect
author: ctflearner
severity: medium
description: |
In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an unexpected URL within the request URL.
impact: |
An attacker can exploit this vulnerability to redirect users to malicious websites, leading to phishing attacks or the download of malware.
remedi
Bugzilla
CVE-2019-10098 httpd: mod_rewrite potential open redirect
bugzilla·2019-08-21·CVSS 6.1
CVE-2019-10098 [MEDIUM] CVE-2019-10098 httpd: mod_rewrite potential open redirect
CVE-2019-10098 httpd: mod_rewrite potential open redirect
A vulnerability was found in httpd where redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an an unexpected URL within the request URL.
Discussion:
Created httpd tracking bugs for this issue:
Affects: fedora-all [bug 1743961]
---
External References:
https://httpd.apache.org/security/vulnerabilities_24.html
---
This vulnerability is out of security support scope for the following product:
* Red Hat JBoss Web Server 3
* Red Hat JBoss Enterprise Web Server 2
Please refer to https://access.redhat.com/support/policy/updates/jboss_notes for more details.
---
Mitigation:
This flaw requires the use of certain Rewrite configuration directi
Bugzilla
CVE-2019-10098 httpd: mod_rewrite potential open redirect [fedora-all]
bugzilla·2019-08-21·CVSS 6.1
CVE-2019-10098 [MEDIUM] CVE-2019-10098 httpd: mod_rewrite potential open redirect [fedora-all]
CVE-2019-10098 httpd: mod_rewrite potential open redirect [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 versions of Fed
Trendmicro
Cyberangriffe auf Open Source-Webserver
blogs_trendmicro·2022-03-03·CVSS 9.8
[CRITICAL] Cyberangriffe auf Open Source-Webserver
APT und gezielte Angriffe
## Cyberangriffe auf Open Source-Webserver
Cyberangriffe auf Open-Source-Webserver wie Apache HTTP Server haben rapide zugenommen. Angriffe wie die Ausführung von Remote-Code, die Umgehung von Zugriffskontrollen, Denial-of-Service oder Cyberjacking dienen dem Mining von Kryptowährungen.
By: Jon Clay Mar 03, 2022 Read time: ( words)
Save to Folio
Originalartikel von Jon Clay, VP, Threat Intelligence
Cyberangriffe auf Open-Source-Webserver wie Apache HTTP Server haben rapide zugenommen. Böswillige Akteure setzen dabei auf Angriffe wie Remote Code Execution (RCE), Umgehung der Zugriffskontrolle, Denial of Service (DoS) oder sogar Cyberjacking, um auf den Servern der Opfer Kryptowährungen zu schürfen. Um Unternehmen vor bösartigen Aktivitäten zu schützen, bedarf
Trendmicro
Recent Cyberattacks Increasingly Target Open-source Web Servers
blogs_trendmicro·2022-02-22·CVSS 9.8
CVE-2021-44228 [CRITICAL] Recent Cyberattacks Increasingly Target Open-source Web Servers
APT & Targeted Attacks
# Recent Cyberattacks Target Open-source Web Servers
Malicious actors take advantage of people’s reliance on web servers to perform attacks like remote code execution, access control bypass, denial of service, or even cyberjacking the victim servers to mine cryptocurrencies.
By: Jon Clay
2022/02/22
Read time: ( words)
Save to Folio
As organizations reeled from the Log4Shell vulnerability (CVE-2021-44228), cyberattacks aiming at open-source web servers, like Apache HTTP Server, were rapidly rising. Malicious actors take advantage of people’s reliance on web servers to perform attacks like remote code execution (RCE), access control bypass, denial of service (DoS), or even cyberjacking the victim servers to mine cryptocurrencies.
To protect enterprises against m
http://www.openwall.com/lists/oss-security/2020/04/01/4https://httpd.apache.org/security/vulnerabilities_24.htmlhttps://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r5d12ffc80685b0df1d6801e68000a7707dd694fe32e4f221de67c210%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rd2fb621142e7fa187cfe12d7137bf66e7234abcbbcd800074c84a538%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3Ehttps://www.oracle.com/security-alerts/cpuApr2021.htmlhttps://www.oracle.com/security-alerts/cpuapr2020.htmlhttps://www.oracle.com/security-alerts/cpujan2020.htmlhttps://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlhttp://www.openwall.com/lists/oss-security/2020/04/01/4https://httpd.apache.org/security/vulnerabilities_24.htmlhttps://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r5d12ffc80685b0df1d6801e68000a7707dd694fe32e4f221de67c210%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rd2fb621142e7fa187cfe12d7137bf66e7234abcbbcd800074c84a538%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3Ehttps://www.oracle.com/security-alerts/cpuApr2021.htmlhttps://www.oracle.com/security-alerts/cpuapr2020.htmlhttps://www.oracle.com/security-alerts/cpujan2020.htmlhttps://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
2019-09-25
Published
Exploited in the wild