CVE-2018-0114
What it is
A vulnerability in the Cisco node-jose open source library before 0.11.0 could allow an unauthenticated, remote attacker to re-sign tokens using a key that is embedded within the token. The vulnerability is due to node-jose following the JSON Web Signature (JWS) standard for JSON Web Tokens (JWTs). This standard specifies that a JSON Web Key (JWK) representing a public key can be embedded within the header of a JWS. This public key is then trusted for verification. An attacker could exploit this by forging valid JWS objects by removing the original signature, adding a new public key to the header, and then signing the object using the (attacker-owned) private key associated with the public key embedded in that JWS header.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data tampering.
- Exploit odds
- 42.7% chance of exploitation in the next 30 days (EPSS). Higher than most.
- 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: 42.7% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 42.7% · EPSS, next 30 days
- Weakness
- CWE-347
- Record status
- Modified
Affected
- Cisco node-jose < 0.11.0
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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-2018-0114.md and follow it. Check whether this project is affected by CVE-2018-0114. 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://tools.cisco.com/security/center/viewAlert.x?alertId=56326
- https://tools.cisco.com/security/center/viewAlert.x?alertId=56326
References
- http://www.securityfocus.com/bid/102445
- https://github.com/cisco/node-jose/blob/master/CHANGELOG.md
- https://github.com/zi0Black/POC-CVE-2018-0114
- https://tools.cisco.com/security/center/viewAlert.x?alertId=56326
- https://www.exploit-db.com/exploits/44324/
- http://www.securityfocus.com/bid/102445
- https://github.com/cisco/node-jose/blob/master/CHANGELOG.md
- https://github.com/zi0Black/POC-CVE-2018-0114
- https://tools.cisco.com/security/center/viewAlert.x?alertId=56326
- https://www.exploit-db.com/exploits/44324/