PT-2023-25973 · Unknown · Contiki-Ng

Lownvt · Published 2023-09-15 · Updated 2023-09-19 · CVE-2023-37459

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Contiki-NG versions 4.9 and prior

Description The issue arises when the Contiki-NG network stack attempts to start the periodic TCP timer for a TCP packet with the SYN flag set without verifying that a full TCP header has been received. This can lead to an out-of-bound read from the packet buffer if an attacker injects a truncated TCP packet. The check for tcp syn function is specifically vulnerable due to its attempt to access the flags field from the TCP buffer without proper validation.

Recommendations For Contiki-NG versions 4.9 and prior, as a temporary workaround, consider applying the changes in Contiki-NG pull request #2510 to patch the system. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2023-37459

GHSA-6648-M23R-HQ8C

Affected Products

Contiki-Ng

References · 6

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/37xxx/CVE-2023-37459.json · Exploit
• https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-6648-m23r-hq8c · Vendor Advisory
• https://github.com/contiki-ng/contiki-ng/pull/2510 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-37459 · Security Note
• https://osv.dev/vulnerability/CVE-2023-37459 · Vendor Advisory
• https://t.me/cibsecurity/70620 · Telegram Post