CVE-2018-1251 Vulnerability Analysis & Exploit Details

CVE-2018-1251
Vulnerability Scoring

8.3
/10
Severe Risk

Cybersecurity professionals consider CVE-2018-1251 an immediate threat requiring urgent mitigation.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: Required
    User interaction is necessary for successful exploitation.

CVE-2018-1251 Details

Status: Modified

Last updated: 🕞 21 Nov 2024, 03:59 UTC
Originally published on: 🕕 28 Sep 2018, 18:29 UTC

Time between publication and last update: 2245 days

CVSS Release: version 3

CVSS3 Source

security_alert@emc.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L

CVE-2018-1251 Vulnerability Summary

CVE-2018-1251: Dell EMC Unity and UnityVSA versions prior to 4.3.1.1525703027 contains a URL Redirection vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability to redirect Unity users to arbitrary web URLs by tricking the victim user to click on a maliciously crafted Unisphere URL. Attacker could potentially phish information, including Unisphere users' credentials, from the victim once they are redirected.

Assessing the Risk of CVE-2018-1251

Access Complexity Graph

The exploitability of CVE-2018-1251 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2018-1251

With low attack complexity and no required privileges, CVE-2018-1251 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2018-1251, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2018-1251, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2018-1251 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2018-1251 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: Low
    CVE-2018-1251 may slightly degrade system performance without fully affecting service availability.

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.255% (probability of exploit)

EPSS Percentile: 65.22% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 34.78% of others.

CVE-2018-1251 References

External References

CWE Common Weakness Enumeration

CWE-601

CAPEC Common Attack Pattern Enumeration and Classification

  • Cross-Site Flashing CAPEC-178 An attacker is able to trick the victim into executing a Flash document that passes commands or calls to a Flash player browser plugin, allowing the attacker to exploit native Flash functionality in the client browser. This attack pattern occurs where an attacker can provide a crafted link to a Flash document (SWF file) which, when followed, will cause additional malicious instructions to be executed. The attacker does not need to serve or control the Flash document. The attack takes advantage of the fact that Flash files can reference external URLs. If variables that serve as URLs that the Flash application references can be controlled through parameters, then by creating a link that includes values for those parameters, an attacker can cause arbitrary content to be referenced and possibly executed by the targeted Flash application.

Vulnerable Configurations

  • cpe:2.3:h:dell:emc_unity:-:*:*:*:*:*:*:*
    cpe:2.3:h:dell:emc_unity:-:*:*:*:*:*:*:*

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