CVE-2021-23357 — LOW (3.3) — White Hats Nepal

Vulnerability Description

All versions of package github.com/tyktechnologies/tyk/gateway are vulnerable to Directory Traversal via the handleAddOrUpdateApi function. This function is able to delete arbitrary JSON files on the disk where Tyk is running via the management API. The APIID is provided by the user and this value is then used to create a file on disk. If there is a file found with the same name then it will be deleted and then re-created with the contents of the API creation request.

CVSS Score

3.3

LOW

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Tyk	Tyk	All versions

Related Weaknesses (CWE)

CWE-22

References

https://github.com/TykTechnologies/tyk/issues/3390ExploitThird Party Advisory
https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMTYKTECHNOLOGIESTYKGATEWAY-1078516Third Party Advisory
https://github.com/TykTechnologies/tyk/issues/3390ExploitThird Party Advisory
https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMTYKTECHNOLOGIESTYKGATEWAY-1078516Third Party Advisory

FAQ

What is CVE-2021-23357?

CVE-2021-23357 is a vulnerability with a CVSS score of 3.3 (LOW). All versions of package github.com/tyktechnologies/tyk/gateway are vulnerable to Directory Traversal via the handleAddOrUpdateApi function. This function is able to delete arbitrary JSON files on the ...

How severe is CVE-2021-23357?

CVE-2021-23357 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-23357?

Check the references section above for vendor advisories and patch information. Affected products include: Tyk Tyk.