Vulnerability in Red Hat Enterprise Linux
CVE-2020-10687
A flaw was discovered in all versions of Undertow before Undertow 2.2.0.Final, where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own.
Vulnerability class: HTTP Request Smuggling
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.012 (67.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.012 · change: +0.001
Affected products
- Red Hat Enterprise Linux — versions 6.0, 7.0, 8.0
- Red Hat Jboss Enterprise Application Platform — versions 7.2, 7.3, 7.4
- Red Hat Single Sign-On
- Red Hat Undertow
- Undertow — versions Undertow 2.2.0.Final
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking, Vendor Advisory)
- lists.apache.org/thread.html/r6603513ea8afbf6857fd77ca5888ec8385d0af493baa4250e… (mailing-list)
- security.netapp.com/advisory/ntap-20220210-0015/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-10687?
- CVE-2020-10687 is a medium-severity vulnerability in Red Hat Enterprise Linux, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 4.8/10. Published 2020-09-23.
- How severe is CVE-2020-10687?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2020-10687 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.