CVE-2018-0114 — A vulnerability in the Cisco node-jose open source library before 0

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

01What is this vulnerability?

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…

02Affected products

Vendor	Product	Versions
n	a / Node	jose Library — Node-jose Library

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2018-01-04T06:00:00.000Z
• Last modified: 2024-12-02T20:58:29.226Z

09References

• tools.cisco.com — https://tools.cisco.com/security/center/viewAlert.x?alertId=56326
• github.com — https://github.com/zi0Black/POC-CVE-2018-0114
• github.com — https://github.com/cisco/node-jose/blob/master/CHANGELOG.md
• www.exploit-db.com — https://www.exploit-db.com/exploits/44324/
• www.securityfocus.com — http://www.securityfocus.com/bid/102445