Vulnerability in Eclipse Jetty
CVE-2017-7656
In Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with RFC2616 compliance enabled), HTTP/0.9 is handled poorly. An HTTP/1 style request line (i.e. method space URI space version) that declares a version of HTTP/0.9 was accepted and treated as a 0.9 request. If deployed behind an intermediary that also accepted and passed through the 0.9 version (but did not act on it), then the response sent could be interpreted by the intermediary as HTTP/1 headers. This could be used to poison the cache if the server allowed the origin client to generate arbitrary content in the response.
Vulnerability class: HTTP Request Smuggling
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.063 (93.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.063 · newest: 0.063 · change: 0.000
Affected products
- Eclipse Jetty
- The Eclipse Foundation Jetty — versions 9.3.0, unspecified, 9.4.0
- Debian Linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2018/dsa-4278 (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1041194 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535… (mailing-list)
- lists.apache.org/thread.html/053d9ce4d579b02203db18545fee5e33f35f2932885459b74d… (mailing-list)
- lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd55… (mailing-list)
- www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- lists.apache.org/thread.html/rbf4565a0b63f9c8b07fab29352a97bbffe76ecafed8b8555c… (mailing-list)
- www.oracle.com/security-alerts/cpuoct2020.html
- bugs.eclipse.org/bugs/show_bug.cgi (Third Party Advisory)
- security.netapp.com/advisory/ntap-20181014-0001/
Frequently asked questions
- What is CVE-2017-7656?
- CVE-2017-7656 is a high-severity vulnerability in Eclipse Jetty, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 7.5/10. Published 2018-06-26.
- How severe is CVE-2017-7656?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-7656 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.