Vulnerability in Snort
CVSS score
5.3
EPSS probability
%2.2
Risk score
0.1
Published
5 y ago
Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.
Impact on My Inventory
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Vulnerability description
DayBreach CVE AI Research
CVE-2021-1236 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
Multiple Cisco products are affected by a vulnerability in the Snort application detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. The vulnerability is due to a flaw in the detection algorithm. An attacker could exploit this vulnerability by sending crafted packets that would flow through an affected system. A successful exploit could allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2021-1236 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | cisco | ios xe | View |
| 2 | cisco | 1100-4p integrated services router | View |
| 3 | cisco | 1100-8p integrated services router | View |
| 4 | cisco | 1101-4p integrated services router | View |
| 5 | cisco | 1109-2p integrated services router | View |
| 6 | cisco | 1109-4p integrated services router | View |
| 7 | cisco | 1111x-8p integrated services router | View |
| 8 | cisco | 4221 integrated services router | View |
| 9 | cisco | 4321 integrated services router | View |
| 10 | cisco | 4331 integrated services router | View |
| 11 | cisco | 4351 integrated services router | View |
| 12 | cisco | 4431 integrated services router | View |
| 13 | cisco | 4451-x integrated services router | View |
| 14 | cisco | 4461 integrated services router | View |
| 15 | cisco | csr 1000v | View |
| 16 | cisco | isa 3000 | View |
| 17 | cisco | secure firewall management center | View |
| 18 | cisco | secure firewall management center | View |
| 19 | cisco | secure firewall management center | View |
| 20 | cisco | secure firewall management center | View |
| 21 | cisco | secure firewall management center | View |
| 22 | cisco | secure firewall threat defense | View |
| 23 | snort | snort | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 5.3 | CVSS V31 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | NVD |
| 5.0 | CVSS V2 | — | AV:N/AC:L/Au:N/C:N/I:P/A:N | NVD |
| 4.0 | CVSS V30 | MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-1236 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-1236 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
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Get this vulnerability through the API
Affected products, version ranges, exploitation status and patch information in a single request, with a free key.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2021-1236"