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

CVE-2019-14994: URL Path Traversal Vulnerability in Jira Service Desk Leads to Information Disclosure

Path traversal flaw in Jira Service Desk can be used by attackers to view protected information in Jira projects.

Background

On September 18, Atlassian published a security advisory for a vulnerability in Jira Service Desk, an IT ticketing application used by over 25,000 organizations to accept, manage and track requests from customers and employees through a web portal.

Tenable Research has identified many publicly accessible Jira Service Desk instances belonging to organizations in healthcare, government, education and manufacturing in the United States, Canada, Europe and Australia. The following is a screenshot of search engine results listing publicly accessible Jira Service Desk portals.

CVE-2019-14994 | URL Path Traversal Vulnerability in Jira Service Desk Leads to Information Disclosure_1

In related news, Atlassian has also released a security advisory for CVE-2019-15001, an authenticated template injection vulnerability in the Jira Importers Plugin for Jira Server reported by security researcher Daniil Dmitriev. Dmitriev discovered and reported another template injection vulnerability, CVE-2019-11581, back in July.

Analysis

CVE-2019-14994 is a URL path traversal vulnerability in Jira Service Desk and Jira Service Desk Data Center. By default, the ticketing system restricts customers’ or employees’ access to certain privileges, such as opening new requests or viewing existing requests without accessing the company’s Jira instance directly.

According to the advisory, an attacker with access to the web portal can send a specially crafted request to the Jira Service Desk portal to bypass these restrictions and view protected information. In order to exploit the vulnerability, the Customer Permissions settings for who can raise a request must be set to “Anyone can email the service desk or raise a request in the portal,” which may be a common configuration because the other two options limit who can open requests. In addition to viewing protected information within Jira Service Desk, an attacker could also view protected information from Jira Software and Jira Core if the “Browse Project” permission is set to Group - Anyone.

While full details about the vulnerability are not public at this time, Sam Curry, the researcher who discovered the vulnerability, tweeted that he plans to publish more details, including a proof-of-concept (PoC), soon. Curry also credited DEVCORE researcher Orange Tsai’s previous work, which stems from a Black Hat and DEFCON presentation from 2018 called “Breaking Parser Logic! Taking Your Path Normalization off and Pop 0days Out.”

CVE-2019-14994 | URL Path Traversal Vulnerability in Jira Service Desk Leads to Information Disclosure_1

Researcher Sam Curry responds to Orange Tsai on Twitter

Curry confirmed to Tsai his findings are linked to Tsai’s example of accessing Uber’s internal Jira server, appending “..;” to the URL path parameter, which gets treated as a parent directory. Atlassian appears to confirm this in its knowledgebase article for the vulnerability.

CVE-2019-14994 | URL Path Traversal Vulnerability in Jira Service Desk Leads to Information Disclosure

Slide deck from Orange Tsai’s Black Hat presentation on accessing Uber’s internal Jira server

Proof of concept

While there was no PoC available when this blog was published, the researcher plans to release a PoC soon.

解决方案

Atlassian has released updated versions of Jira Service Desk Server and Jira Service Desk Data Center to address this vulnerability. The following table contains the list of vulnerable versions with the associated fixed versions.

Affected Version Fixed Version
3.9.16 and prior 3.9.16 or 3.16.8
3.10.0 through 3.16.7 3.16.8
4.0.0 through 4.1.2 4.1.3
4.2.0 through 4.2.4 4.2.5
4.3.0 through 4.3.3 4.3.4
4.4.0 4.4.1

Fixed versions can be retrieved from Atlassian’s Service Desk update page.

If upgrading to a patched version of Jira Service Desk Server or Service Desk Center is not feasible at this time, Atlassian has also provided temporary workarounds to thwart attacks.

Organizations using Jira Service Desk Server or Service Desk Center should consider patching as soon as possible ahead of the release of a PoC and exploit attempts from attackers.

Identifying affected systems

A list of Tenable plugins to identify this vulnerability will appear here as they’re released.

Get more information

Join Tenable's Security Response Team on the Tenable Community.

Learn more about Tenable, the first Cyber Exposure platform for holistic management of your modern attack surface.

Get a free 60-day trial of Tenable.io Vulnerability Management.

订阅 Tenable 博客

订阅
免费试用 立即购买

选择 Tenable.io

免费试用 30 天

可全面访问基于云的现代化漏洞管理平台,从而以无可比拟的精确度发现并追踪所有资产。 立即注册。

立即购买 Tenable.io

可全面访问基于云的现代化漏洞管理平台,从而以无可比拟的精确度发现并追踪所有资产。 立即购买年度订阅。

65资产

$2,275

立即购买

免费试用 立即购买

免费试用 Nessus Professional

免费试用 7 天

Nessus® 是当今市场上功能最全面的漏洞扫描器。Nessus Professional 可帮助自动化漏洞扫描流程、节省合规周期的时间,并让您调动起 IT 团队的积极性。

购买 Nessus Professional

Nessus® 是当今市场上功能最全面的漏洞扫描器。Nessus Professional 可帮助自动化漏洞扫描流程、节省合规周期的时间,并让您调动起 IT 团队的积极性。

购买多年期许可,即享优惠价格添加高级版支持,获取一年 365 天、一天 24 小时的电话、邮件、社区和聊天支持。完整介绍见此处。

免费试用 立即购买

试用 Tenable.io Web Application Scanning

免费试用 30 天

完整享有专为现代化应用程序而设、属于 Tenable.io 平台组成部分的最新 Web 应用程序扫描功能。可安全扫描全部在线资产组合的漏洞,具有高度准确性,而且无需繁重的手动操作或中断关键的 Web 应用程序。 立即注册。

购买 Tenable.io Web Application Scanning

可全面访问基于云的现代化漏洞管理平台,从而以无可比拟的精确度发现并追踪所有资产。 立即购买年度订阅。

5 FQDN

$3,578

立即购买

免费试用 联系销售人员

试用 Tenable.io Container Security

免费试用 30 天

完整获得已集成至漏洞管理平台之唯一容器安全产品的功能。监控容器映像中的漏洞、恶意软件和策略违规。与持续集成和持续部署 (CI/CD) 系统进行整合,以支持 DevOps 实践、增强安全性并支持企业政策合规。

购买 Tenable.io Container Security

Tenable.io Container Security 经由与构建流程的集成,可供全面了解容器映像的安全性,包括漏洞、恶意软件和策略违规,借以无缝且安全地启用 DevOps 流程。

了解有关 Industrial Security 的详情

获取 Tenable.sc 演示

请将您的联系方式填写在下方表格中,我们的销售代表很快与您联系安排演示。您也可以写下简短评论(不得超过 255 个字符)。请注意,带星号 (*) 的字段为必填项。

免费试用 联系销售人员

试用 Tenable Lumin

免费试用 30 天

通过 Tenable Lumin 实现对 Cyber Exposure 的直观呈现及探索,长期追踪风险降低状况,并比照同行业者进行基准衡量。

购买 Tenable Lumin

联系销售代表,了解 Lumin 如何帮助您获取整个企业的洞见并管理网络风险。