Vulnerability · Published Dec 25, 2022 · Assigned by VulDB

CVE-2020-36629SimbCo httpster server.coffee fs.realpathSync path traversal

Medium 5.5

In plain English

A medium-severity path traversal in httpster from SimbCo. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)0.9%top 40.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability classified as critical was found in SimbCo httpster. This vulnerability affects the function fs.realpathSync of the file src/server.coffee. The manipulation leads to path traversal. The exploit has been disclosed to the public and may be used. The name of the patch is d3055b3e30b40b65d30c5a06d6e053dffa7f35d0. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-216748.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	httpster	1.1.0	GHSA-p8j8-wxvp-h695

Affected products (as reported)

Vendor	Product	Versions
SimbCo	httpster	n/a

Weakness: CWE-22 · Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

References

https://vuldb.com/?id.216748 technical-description, vdb-entry
https://github.com/SimbCo/httpster/pull/36 exploit
https://github.com/SimbCo/httpster/commit/d3055b3e30b40b65d30c5a06d6e053dffa7f35d0 mitigation, patch