CVE-2017-7559
What it is
In Undertow 2.x before 2.0.0.Alpha2, 1.4.x before 1.4.17.Final, and 1.3.x before 1.3.31.Final, it was found that the fix for CVE-2017-2666 was incomplete and invalid characters are still allowed in the query string and path parameters. 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.
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. Limited direct impact.
- Exploit odds
- 1.9% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.9% in the next 30 days (EPSS).
- Severity: 6.1 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.9% · EPSS, next 30 days
- Weakness
- CWE-444
- Record status
- Modified
Affected
- Redhat Undertow < 1.3.31
- Redhat Undertow < 1.4.17
- Redhat Undertow 2.0.0
Attack profile CVSS 3.0 · 6.1
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Raw vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2017-7559.md and follow it. Check whether this project is affected by CVE-2017-7559. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://access.redhat.com/errata/RHSA-2017:3454
- https://access.redhat.com/errata/RHSA-2017:3455
- https://access.redhat.com/errata/RHSA-2017:3456
- https://access.redhat.com/errata/RHSA-2017:3458
- https://access.redhat.com/errata/RHSA-2018:0002
- https://access.redhat.com/errata/RHSA-2018:0003
- https://access.redhat.com/errata/RHSA-2018:0004
- https://access.redhat.com/errata/RHSA-2018:0005
- https://access.redhat.com/errata/RHSA-2018:1322
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7559
References
- https://access.redhat.com/errata/RHSA-2017:3454
- https://access.redhat.com/errata/RHSA-2017:3455
- https://access.redhat.com/errata/RHSA-2017:3456
- https://access.redhat.com/errata/RHSA-2017:3458
- https://access.redhat.com/errata/RHSA-2018:0002
- https://access.redhat.com/errata/RHSA-2018:0003
- https://access.redhat.com/errata/RHSA-2018:0004
- https://access.redhat.com/errata/RHSA-2018:0005
- https://access.redhat.com/errata/RHSA-2018:1322
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7559
- https://issues.jboss.org/browse/UNDERTOW-1251
- https://access.redhat.com/errata/RHSA-2017:3454
- https://access.redhat.com/errata/RHSA-2017:3455
- https://access.redhat.com/errata/RHSA-2017:3456
- https://access.redhat.com/errata/RHSA-2017:3458
- https://access.redhat.com/errata/RHSA-2018:0002
- https://access.redhat.com/errata/RHSA-2018:0003
- https://access.redhat.com/errata/RHSA-2018:0004
- https://access.redhat.com/errata/RHSA-2018:0005
- https://access.redhat.com/errata/RHSA-2018:1322
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7559
- https://issues.jboss.org/browse/UNDERTOW-1251