What is CVE-2021-32700?

CVE-2021-32700 is a critical-severity vulnerability in Ballerina, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2021-06-22.

How severe is CVE-2021-32700?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Ballerina

CVE-2021-32700

Ballerina is an open source programming language and platform for cloud application programmers. Ballerina versions 1.2.x and SL releases up to alpha 3 have a potential for a supply chain attack via MiTM against users. Http connections did not make use of TLS and certificate checking was ignored. The vulnerability allows an attacker to substitute or modify packages retrieved from BC thus allowing to inject malicious code into ballerina executables. This has been patched in Ballerina 1.2.14 and Ballerina SwanLake alpha4.

Vulnerability class: Broken Authentication

EPSS: 0.006 (44.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Ballerina
Ballerina Swan_lake — versions alpha1, alpha2, alpha3
Ballerina-platform Ballerina-lang — versions < 1.2.14, < SL-alpha4

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-32700?: CVE-2021-32700 is a critical-severity vulnerability in Ballerina, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2021-06-22.
How severe is CVE-2021-32700?: Critical severity. CVSS v3 base score is 9.1 out of 10.