A vulnerability in the web interface of Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an authenticated, remote attacker to elevate privileges on an affected system. This vulnerability is due to the improper transmission of sensitive user information. An attacker could exploit this vulnerability by sending a crafted message to an affected Cisco SSM On-Prem host and retrieving session credentials from subsequent status messages. A successful exploit could allow the attacker to elevate privileges on the affected system from low to administrative. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of System User. Note: This vulnerability exposes information only about users who logged in to the Cisco SSM On-Prem host using the web interface and who are currently logged in. SSH sessions are not affected.
With a CVSS score of 7.3, this vulnerability is classified as high severity. Organizations utilizing Cisco Smart Software Manager On-Prem should be aware of the potential risks associated with this issue, especially since it can lead to elevated privileges. The urgency for defenders is to address this vulnerability promptly to prevent unauthorized access and potential exploitation.
Given the current status of 'Awaiting Analysis', it is crucial for security teams to monitor developments related to this vulnerability. Effective remediation may involve patching affected systems as soon as updates are available from Cisco.
Risk to organizations includes the possibility of unauthorized access to sensitive information and administrative controls. Therefore, organizations should prioritize patching immediately.
Vulnerability Details
The vulnerability identified as CVE-2026-20151 enables authenticated remote attackers to elevate privileges on affected systems. The vulnerability is characterized by improper transmission of sensitive user information, which can be exploited by sending crafted messages to Cisco SSM On-Prem hosts.
CVSS version 3.1 rates this vulnerability with a score of 7.3, indicating a high severity level. The attack vector is network-based, and the complexity is low, requiring only valid user credentials. User interaction is required, and the impact on confidentiality and integrity is high, while availability remains unaffected.
Technical Analysis
The root cause of this vulnerability stems from the improper handling of sensitive user information during transmission. Attackers may leverage this flaw by sending specially crafted messages that exploit the web interface of Cisco SSM On-Prem. This attack is feasible due to the low attack complexity, requiring only a user with a role of System User.
The attack vector is through a network, making it accessible to anyone with valid credentials. The impact of a successful attack includes both confidentiality and integrity breaches, as attackers can gain administrative privileges.
Risk & Impact Analysis
Organizations that deploy Cisco Smart Software Manager On-Prem face significant risks if this vulnerability is not addressed. The potential for privilege escalation means that attackers could gain unauthorized access to critical systems, leading to data breaches and operational disruptions. The blast radius of such an exploit could affect all users who have logged into the system, thereby increasing the urgency for a fix.
Moreover, the vulnerability presents a concerning attack surface that could be exploited by malicious actors. Given the high CVSS score and the potential impact on sensitive data, organizations should address this vulnerability in their priority patch cycle.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Currently, there are no specific version ranges provided for this vulnerability. Organizations should assume that all versions of Cisco Smart Software Manager On-Prem are affected until a patch is released by the vendor.
Mitigation & Remediation
Organizations should prioritize patching this vulnerability as soon as updates are available from Cisco. In the absence of a patch, consider implementing mitigation strategies such as restricting access to the web interface and monitoring user activity for suspicious behavior.
Further, organizations may benefit from conducting a thorough security assessment to identify additional vulnerabilities that could be exploited in conjunction with this one. Regular security testing, such as penetration testing, can help to proactively mitigate risks.
Detection Guidance
Organizations should monitor logs for unusual access patterns, especially from accounts with privileged access. Additionally, keep an eye out for any behavioral anomalies that may suggest exploitation attempts, including unexpected status messages from the web interface.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2026-20151 lies in its demonstration of how vulnerabilities in web interfaces can lead to severe privilege escalation. This case underscores the importance of robust security measures in software management tools.
Security teams should learn from this vulnerability to enhance their defensive strategies, focusing on better encryption and transmission protocols to protect sensitive user information. Regularly reviewing security practices and conducting assessments can help identify and mitigate similar vulnerabilities in the future.
For more information on securing your software management environment, organizations can refer to our vulnerability management program and our insights on effective security management.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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