Facebook Google Plus Twitter LinkedIn YouTube RSS Menu Search Resource - BlogResource - WebinarResource - ReportResource - Eventicons_066 icons_067icons_068icons_069icons_070

Tenable 部落格

訂閱

Public Exploit Modules Available for Cisco Prime Infrastructure Vulnerability

Users of Cisco Prime Infrastructure Software are urged to update to the latest version to address one of two vulnerabilities that, when chained, could lead to remote code execution with system-level permissions.

背景說明

Cisco released an advisory for CVE-2018-15379, an arbitrary file upload and command execution vulnerability for its Cisco Prime Infrastructure (CPI) software. The CPI management software is designed to allow businesses to manage their network device configurations all in one place, rather than individually by device. CPI also offers integration with Cisco Identity Services Engine (ISE) and location-based tracking through the Cisco Mobility Services Engine (MSE).

Vulnerability details

The CPI management tool has two vulnerabilities that, when exploited in tandem, could allow remote code execution. Pedro Ribeiro of Agile Information Security released a Proof of Concept (PoC) that outlines exploitation in greater detail. The researcher also states that exploit modules are publicly available for this vulnerability.

An attacker can first upload a JavaServer Page (JSP) web shell file using a Trivial File Transfer Protocol (TFTP) client to the /localdisk/tftp/ directory through the default TFTP port (port 69) to gain a shell as the "prime" user, which is unprivileged. From there, an attacker can inject commands through an unsanitized portion of the /opt/CSCOlumos/bin/runrshell binary to gain root access in their open shell.

Tenable researchers were also easily able to establish a web shell that accepted command input on a CPI target running version 3.2 in our lab. A standard id command displayed the status of the current user:

However, the privilege escalation can be easily demonstrated with this command:

Urgently required actions

Cisco has available workarounds, such as disabling the TFTP server listed in their advisory. However, we suggest updating to the fixed version (3.4.1) provided by Cisco. An important note is that this fix only addresses the TFTP file upload vulnerability. If an attacker were to gain access to the host in some other fashion that allows them to invoke the unsanitized binary, then the code execution vulnerability would still be exploitable.

Instructions for updating Cisco Prime Infrastructure Software are included in the advisory.

找出受影響的系統

A list of Nessus plugins to identify this vulnerability can be found here.

取得更多資訊

Learn more about Tenable.io, the first Cyber Exposure platform for holistic management of your modern attack surface. Get a free 60-day trial of Tenable.io Vulnerability Management.

相關文章

您可以使用的網路安全最新消息

輸入您的電子郵件,就不會錯過來自 Tenable 專家提供的及時警示與安全指引。

Tenable Vulnerability Management

享受現代、雲端型的弱點管理平台,能夠以無與倫比的準確性查看和追蹤所有資產。

您的 Tenable Vulnerability Management 試用版軟體也包含 Tenable Lumin 和 Tenable Web App Scanning。

Tenable Vulnerability Management

享受現代、雲端型的弱點管理平台,使您能夠以無與倫比的準確性查看和追蹤所有資產。 立即訂閱一年。

100 項資產

選取您的訂閱選項:

立即購買

Tenable Vulnerability Management

享受現代、雲端型的弱點管理平台,能夠以無與倫比的準確性查看和追蹤所有資產。

您的 Tenable Vulnerability Management 試用版軟體也包含 Tenable Lumin 和 Tenable Web App Scanning。

Tenable Vulnerability Management

享受現代、雲端型的弱點管理平台,使您能夠以無與倫比的準確性查看和追蹤所有資產。 立即訂閱一年。

100 項資產

選取您的訂閱選項:

立即購買

Tenable Vulnerability Management

享受現代、雲端型的弱點管理平台,能夠以無與倫比的準確性查看和追蹤所有資產。

您的 Tenable Vulnerability Management 試用版軟體也包含 Tenable Lumin 和 Tenable Web App Scanning。

Tenable Vulnerability Management

享受現代、雲端型的弱點管理平台,使您能夠以無與倫比的準確性查看和追蹤所有資產。 立即訂閱一年。

100 項資產

選取您的訂閱選項:

立即購買

試用 Tenable Web App Scanning

享受完整存取我們專為新型應用程式所設計、屬於 Tenable One 曝險管理平台一部分的最新 Web 應用程式掃描產品。不需耗費大量人力或中斷重要 Web 應用程式,即可高度準確且安全地掃描您整個線上產品系列中是否含有任何弱點。 立即註冊。

您的 Tenable Web App Scanning 試用版軟體也包含 Tenable Vulnerability Management 和 Tenable Lumin。

購買 Tenable Web App Scanning

享受現代、雲端型的弱點管理平台,使您能夠以無與倫比的準確性查看和追蹤所有資產。 立即訂閱一年。

5 個 FQDN

$3,578

立即購買

試用 Tenable Lumin

利用 Tenable Lumin 視覺化並探索您的曝險管理、追蹤經過一段時間後風險降低的情形以及與同業進行指標分析。

您的 Tenable Lumin 試用版軟體也包含 Tenable Vulnerability Management 和 Tenable Web App Scanning。

購買 Tenable Lumin

聯絡業務代表,瞭解 Tenable Lumin 如何協助您取得您整個環境的深入解析和管理網路風險。

免費試用 Tenable Nessus Professional

免費試用 7 天

Tenable Nessus 是目前市場上最全方位的弱點掃描器。

最新 - Tenable Nessus Expert
現已上市

Nessus Expert 新增了更多功能,包括外部攻擊破綻掃描和新增網域及掃描雲端基礎架構的能力。按這裡試用 Nessus Expert。

請填妥以下表單以繼續 Nessus Pro 試用。

購買 Tenable Nessus Professional

Tenable Nessus 是目前市場上最全方位的弱點掃描器。Tenable Nessus Professional 可協助將弱點掃描流程自動化,節省您執行合規工作的時間並讓您與 IT 團隊合作。

購買多年期授權,節省更多。新增 365 天全年無休 24 小時全天候可使用電話、社群及對談的進階支援。

選擇您的授權

購買多年期授權,節省更多。

增加支援與訓練

免費試用 Tenable Nessus Expert

免費試用 7 天

Nessus Expert 是專為現代攻擊破綻所打造,它能讓您從 IT 到雲端洞察更多資訊,並保護貴公司免於弱點危害。

您已經有 Tenable Nessus Professional 了嗎?
升級至 Nessus Expert,免費試用 7 天。

購買 Tenable Nessus Expert

Nessus Expert 是專為現代攻擊破綻所打造,它能讓您從 IT 到雲端洞察更多資訊,並保護貴公司免於弱點危害。

選擇您的授權

購買多年期授權省更多!

增加支援與訓練