CVE-2017-2666
mediumpriority · track · 37EPSS 0.031 · 88 %ileexploit · PoCEUUSEPSS · scored 2026-10-27
It was discovered in Undertow that the code that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
- tafamace/CVE-2017-2666tafamace/CVE-2017-2666PoC · poc_in_github
affected products (8)
Products and version ranges known to be affected.
- redhat jboss enterprise application platform= 7.0.0nvdUScpe:2.3:a:redhat:jboss_enterprise_application_platform:*:*:*:*:*:*:*:*
- redhat jboss enterprise application platform= 7.1.0nvdUScpe:2.3:a:redhat:jboss_enterprise_application_platform:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-mcfm-h73v-635mUndertow-core vulnerable to HTTP Request Smuggling2018-10-19ghsa · osvUS
It was discovered in Undertow that the code that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (38)
External citations — patches, advisories, analysis.
- http://rhn.redhat.com/errata/RHSA-2017-1409.htmlcnnvd
- http://www.securityfocus.com/bid/98966cnnvd
- https://access.redhat.com/errata/RHSA-2017:1410cnnvd
- https://access.redhat.com/errata/RHSA-2017:1411cnnvd
- https://access.redhat.com/errata/RHSA-2017:1412cnnvd
- https://access.redhat.com/errata/RHSA-2017:3454cnnvd
- https://access.redhat.com/errata/RHSA-2017:3455cnnvd
- https://access.redhat.com/errata/RHSA-2017:3456cnnvd
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