PT-2020-13335 · Morita · Morita Shogi 64

Published 2020-05-16 · Updated 2020-05-20 · CVE-2020-13109

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Morita Shogi 64 versions through 2020-05-02

Description The issue allows remote attackers to execute arbitrary code via crafted packet data to the built-in modem because 0x800b3e94 (aka the IF subcommand to top-level command 7) has a stack-based buffer overflow. This occurs when sending data to the modem, potentially allowing for the execution of arbitrary code.

Recommendations For Morita Shogi 64 versions through 2020-05-02, as a temporary workaround, consider disabling the use of the built-in modem until a patch is available. Restrict access to the modem functionality to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-13109

Affected Products

Morita Shogi 64

References · 5

• 🔥 https://cturt.github.io/shogihax.html · Exploit
• https://osv.dev/vulnerability/CVE-2020-13109 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-13109 · Security Note
• https://github.com/CTurt/shogihax · Note
• https://t.me/cvenotify/3857 · Telegram Post