HIGH
CVE-2017-18076
NVD-CWE-noinfoPublished: January 26, 2018· Updated: Jun 17, 2026
7.5
CVSS v3.1
Official Description
In strategy.rb in OmniAuth before 1.3.2, the authenticity_token value is improperly protected because POST (in addition to GET) parameters are stored in the session and become available in the environment of the callback phase.
Technical Analysis
CVE-2017-18076 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
ADVISORYhttps://bugs.debian.org/888523
ADVISORYhttps://bugs.debian.org/888523
All References (8)
→
https://bugs.debian.org/888523Issue Tracking · Third Party Advisory
→
https://github.com/omniauth/omniauth/pull/867Patch · Third Party Advisory
→
https://github.com/omniauth/omniauth/pull/867/commits/71866c5264122e196847a3980c43051446a03e9bPatch · Third Party Advisory
→
https://www.debian.org/security/2018/dsa-4109Third Party Advisory
→
https://bugs.debian.org/888523Issue Tracking · Third Party Advisory
→
https://github.com/omniauth/omniauth/pull/867Patch · Third Party Advisory
→
https://github.com/omniauth/omniauth/pull/867/commits/71866c5264122e196847a3980c43051446a03e9bPatch · Third Party Advisory
→
https://www.debian.org/security/2018/dsa-4109Third Party Advisory
Quick Facts
CVE IDCVE-2017-18076
CVSS Score7.5 / 10
SeverityHIGH
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected2 vendor(s)
PublishedJan 26, 2018
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2017-18076 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.