PT-2021-1770 · Cisco+1 · Snort+1

Ilkin Gasimov · Published 2021-01-13 · Updated 2024-12-13 · CVE-2021-1223

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Cisco products (affected versions not specified)

Description: The issue is related to a vulnerability in the Snort detection engine, which could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. This is due to incorrect handling of an HTTP range header. An attacker could exploit this by sending crafted HTTP packets through an affected device, potentially allowing them to bypass the configured file policy for HTTP packets and deliver a malicious payload.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Protection Mechanism Failure

Weakness Enumeration

CWE-693

Related Identifiers

ALT-PU-2021-1678

ALT-PU-2024-16610

BDU:2021-00473

CVE-2021-1223

DLA-3317-1

DSA-5354-1

MGASA-2023-0117

Affected Products

Alt Linux

Snort

References · 19

• https://osv.dev/vulnerability/CVE-2021-1223 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2023-0117.html · Security Note
• https://osv.dev/vulnerability/DSA-5354-1 · Vendor Advisory
• https://debian.org/lts/security/2023/dla-3317 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1223 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-filepolbypass-67DEwMe2 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-1223 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-1223 · Vendor Advisory
• https://debian.org/security/2023/dsa-5354 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2023-0117 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-3317-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00473 · Security Note
• https://cve.org/CVERecord?id=CVE-2021-1223 · Security Note
• https://bugs.mageia.org/show_bug.cgi?id=27741 · Note
• https://xn--80ahaefyxhn.xn--j1afgaq.xn--p1ai/bin/view/%D0%9E%D0%A1%D0%BD%D0%BE%D0%B2%D0%B0/%D0%9E%D0%B1%D0%BD%D0%BE%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F/2.8 · Note