PT-2021-14168 · Nec · Nec Aterm Wg1200Cr+1

Taizoh Tsukamoto · Published 2021-04-26 · Updated 2021-05-05 · CVE-2021-20709

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: NEC Aterm WF1200CR versions 1.3.2 and earlier NEC Aterm WG1200CR versions 1.3.3 and earlier NEC Aterm WG2600HS versions 1.5.1 and earlier

Description: The issue is related to improper validation of an integrity check value, allowing an attacker with administrative privileges to execute arbitrary OS commands. This can be achieved by sending a specially crafted request to a specific URL.

Recommendations: For NEC Aterm WF1200CR versions 1.3.2 and earlier, update to a version later than 1.3.2 to resolve the issue. For NEC Aterm WG1200CR versions 1.3.3 and earlier, update to a version later than 1.3.3 to resolve the issue. For NEC Aterm WG2600HS versions 1.5.1 and earlier, update to a version later than 1.5.1 to resolve the issue. As a temporary workaround, consider restricting access to the specific URL that can be exploited to execute arbitrary OS commands.

Fix

Weakness Enumeration

CWE-354

Related Identifiers

CVE-2021-20709

Affected Products

Nec Aterm Wg1200Cr

Nec Aterm Wg2600Hs

References · 5

• https://osv.dev/vulnerability/CVE-2021-20709 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-20709 · Security Note
• https://jpn.nec.com/security-info/secinfo/nv21-010.html · Vendor Advisory
• https://t.me/cvenotify/14114 · Telegram Post
• https://jvn.jp/en/jp/JVN29739718/index.html · Note