PT-2021-19526 · Halibut · Halibut

Ashley Donaldson · Published 2021-09-22 · Updated 2021-09-29 · CVE-2021-31819

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Halibut versions prior to 4.4.7

Description The issue is related to a deserialisation vulnerability that could allow remote code execution on systems that already trust each other based on certificate verification.

Recommendations For Halibut versions prior to 4.4.7, update to version 4.4.7 or later to resolve the issue. As a temporary workaround, consider restricting access to trusted systems to minimize the risk of exploitation.

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2021-31819

GHSA-HPF7-4C2G-9CHF

Affected Products

Halibut

References · 7

• https://osv.dev/vulnerability/GHSA-hpf7-4c2g-9chf · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-31819 · Security Note
• https://osv.dev/vulnerability/CVE-2021-31819 · Vendor Advisory
• https://github.com/OctopusDeploy/Halibut · Note
• https://t.me/cibsecurity/29210 · Telegram Post
• https://advisories.octopus.com/adv/2021-08---Remote-Code-Execution-via-Deserialisation-in-the-Halibut-Protocol-(CVE-2021-31819).2250309681.html · Note
• https://advisories.octopus.com/adv/2021-08---Remote-Code-Execution-via-Deserialisation-in-the-Halibut-Protocol-%28CVE-2021-31819%29.2250309681.html · Note