CVE-2018-5430 : Detail

CVE-2018-5430

8.8
/
High
Directory Traversal
A01-Broken Access Control
10.44%V3
Network
2018-04-17
18h00 +00:00
2025-02-07
13h19 +00:00
CVE.org
NVD
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CVE Descriptions

TIBCO JasperReports Server Information Disclosure Vulnerability

The Spring web flows of TIBCO Software Inc.'s TIBCO JasperReports Server, TIBCO JasperReports Server Community Edition, TIBCO JasperReports Server for ActiveMatrix BPM, TIBCO Jaspersoft for AWS with Multi-Tenancy, and TIBCO Jaspersoft Reporting and Analytics for AWS contain a vulnerability which may allow any authenticated user read-only access to the contents of the web application, including key configuration files. Affected releases include TIBCO Software Inc.'s TIBCO JasperReports Server: versions up to and including 6.2.4; 6.3.0; 6.3.2; 6.3.3;6.4.0; 6.4.2, TIBCO JasperReports Server Community Edition: versions up to and including 6.4.2, TIBCO JasperReports Server for ActiveMatrix BPM: versions up to and including 6.4.2, TIBCO Jaspersoft for AWS with Multi-Tenancy: versions up to and including 6.4.2, TIBCO Jaspersoft Reporting and Analytics for AWS: versions up to and including 6.4.2.

CVE Solutions

TIBCO has released updated versions of the affected components which address these issues. For each affected system, update to the corresponding software versions: TIBCO JasperReports Server versions 6.2.4 and below update to version 6.2.5 or higher TIBCO JasperReports Server versions 6.3.0, 6.3.2, and 6.3.3 update to version 6.3.4 or higher TIBCO JasperReports Server versions 6.4.0 and 6.4.2 update to version 6.4.3 or higher TIBCO JasperReports Server Community Edition versions 6.4.2 and below update to version 6.4.3 or higher TIBCO JasperReports Server for ActiveMatrix BPM versions 6.4.2 and below update to version 6.4.3 or higher TIBCO Jaspersoft for AWS with Multi-Tenancy versions 6.4.2 and below update to version 6.4.3 or higher TIBCO Jaspersoft Reporting and Analytics for AWS versions 6.4.2 and below update to version 6.4.3 or higher

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Metrics

Metrics Score Severity CVSS Vector Source
V3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Base: Exploitabilty Metrics

The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component.

Attack Vector

This metric reflects the context by which vulnerability exploitation is possible.

Network

The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).

Attack Complexity

This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability.

Low

Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success when attacking the vulnerable component.

Privileges Required

This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability.

Low

The attacker requires privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.

User Interaction

This metric captures the requirement for a human user, other than the attacker, to participate in the successful compromise of the vulnerable component.

None

The vulnerable system can be exploited without interaction from any user.

Base: Scope Metrics

The Scope metric captures whether a vulnerability in one vulnerable component impacts resources in components beyond its security scope.

Scope

Formally, a security authority is a mechanism (e.g., an application, an operating system, firmware, a sandbox environment) that defines and enforces access control in terms of how certain subjects/actors (e.g., human users, processes) can access certain restricted objects/resources (e.g., files, CPU, memory) in a controlled manner. All the subjects and objects under the jurisdiction of a single security authority are considered to be under one security scope. If a vulnerability in a vulnerable component can affect a component which is in a different security scope than the vulnerable component, a Scope change occurs. Intuitively, whenever the impact of a vulnerability breaches a security/trust boundary and impacts components outside the security scope in which vulnerable component resides, a Scope change occurs.

Unchanged

An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.

Base: Impact Metrics

The Impact metrics capture the effects of a successfully exploited vulnerability on the component that suffers the worst outcome that is most directly and predictably associated with the attack. Analysts should constrain impacts to a reasonable, final outcome which they are confident an attacker is able to achieve.

Confidentiality Impact

This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability.

High

There is a total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.

Integrity Impact

This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information.

High

There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.

Availability Impact

This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability.

High

There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Temporal Metrics

The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence in the description of a vulnerability.

Environmental Metrics

These metrics enable the analyst to customize the CVSS score depending on the importance of the affected IT asset to a user’s organization, measured in terms of Confidentiality, Integrity, and Availability.

 nvd@nist.gov
V3.0 7.7 HIGH CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Base: Exploitabilty Metrics

The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component.

Attack Vector

This metric reflects the context by which vulnerability exploitation is possible.

Network

A vulnerability exploitable with network access means the vulnerable component is bound to the network stack and the attacker's path is through OSI layer 3 (the network layer). Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable one or more network hops away (e.g. across layer 3 boundaries from routers).

Attack Complexity

This metric describes the conditions beyond the attacker's control that must exist in order to exploit the vulnerability.

Low

Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.

Privileges Required

This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability.

Low

The attacker is authorized with (i.e. requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.

User Interaction

This metric captures the requirement for a user, other than the attacker, to participate in the successful compromise of the vulnerable component.

None

The vulnerable system can be exploited without interaction from any user.

Base: Scope Metrics

An important property captured by CVSS v3.0 is the ability for a vulnerability in one software component to impact resources beyond its means, or privileges.

Scope

Formally, Scope refers to the collection of privileges defined by a computing authority (e.g. an application, an operating system, or a sandbox environment) when granting access to computing resources (e.g. files, CPU, memory, etc). These privileges are assigned based on some method of identification and authorization. In some cases, the authorization may be simple or loosely controlled based upon predefined rules or standards. For example, in the case of Ethernet traffic sent to a network switch, the switch accepts traffic that arrives on its ports and is an authority that controls the traffic flow to other switch ports.

Changed

An exploited vulnerability can affect resources beyond the authorization privileges intended by the vulnerable component. In this case the vulnerable component and the impacted component are different.

Base: Impact Metrics

The Impact metrics refer to the properties of the impacted component.

Confidentiality Impact

This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability.

High

There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.

Integrity Impact

This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information.

None

There is no loss of integrity within the impacted component.

Availability Impact

This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability.

None

There is no impact to availability within the impacted component.

Temporal Metrics

The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence that one has in the description of a vulnerability.

Environmental Metrics
V2 4 AV:N/AC:L/Au:S/C:P/I:N/A:N nvd@nist.gov

CISA KEV (Known Exploited Vulnerabilities)

Vulnerability name : TIBCO JasperReports Server Information Disclosure Vulnerability

Required action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns : Unknown

Added : 2022-12-28 23h00 +00:00

Action is due : 2023-01-18 23h00 +00:00

Important information
This CVE is identified as vulnerable and poses an active threat, according to the Catalog of Known Exploited Vulnerabilities (CISA KEV). The CISA has listed this vulnerability as actively exploited by cybercriminals, emphasizing the importance of taking immediate action to address this flaw. It is imperative to prioritize the update and remediation of this CVE to protect systems against potential cyberattacks.

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 44623

Publication date : 2018-05-02 22h00 +00:00
Author : Hector Monsegur
EDB Verified : No

TIBCO’s JasperReports (<=6.2.4, 6.3.0, 6.3.2-3, 6.4.0, 6.4.2, CE/ActiveMatrix BPM and Jaspersoft AWS with Multi-Tenancy/Reporting and Analytics for AWS <=6.4.2) is vulnerable to an authenticated file read and inclusion vulnerability by means of directory traversal. It is possible for an attacker, regardless of user permissions, to access or include files from within the filesystem hosting the application. CVSS v3 Base Score: 7.7 (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N) - - - ## Bypassing JasperReports Access Controls The following example allowed us to include an administrator JSP from a low privileged user (joeuser): /jasperserver/flow.html?_flowId=sampleFlow&page=../../../jsp/modules/administer/adminImport Which took us from: getAttribute() @ HttpServletRequestParameterMap.java:57 > string[] = wrapper.getParameterValues("page") To: getResource() @ DirResourceSet.java:101 > file = new File(/home/rhino/jasperreports...mcat/webapps/jasperserver,"/WEB-INF/jsp/modules/administer/adminImport.jsp") Due to a lack of input validation we found ourselves with the capability to traverse paths to a destination of our choice. Below you will find more Proof of Concepts (PoCs) of the the attack in question: ## Accessing Administrator Export Functions /jasperserver-pro/___________?{param}=.. ## Accessing AWS Configuration Functions /jasperserver-pro/flow.html?_flowId=sampleFlow&page=../../../jsp/modules/administer/awsConfiguration The above issue allowed us to load privileged portions of the application geared towards the Administrator, thus bypassing access controls. ## Local File Read The following command allowed us to read configuration files on the server, taking advantage of an unsanitized ‘page’ perimeter and reading configuration files. An attacker would use these credentials to further pivot across application and services. Although the above screenshot provides a randomly generated password for the occasion, we decided to blur it out of habit. /jasperserver-pro/flow.html?_flowId=sampleFlow&page=../../../js.jdbc.properties; ## Local File Inclusion (JSP) And in the event of a post-intrusion scenario, an attacker would need to upload an arbitrary JSP file, masqueraded as a regular file (sans .jsp) to the victims filesystem and execute something like the following via a local file inclusion: /jasperserver-pro/flow.html?_flowId=sampleFlow&page=../../../jsp/modules/administer/file; NOTE: Since the application appends ‘.jsp’ to the ‘page’ paramater value, normally you would end up with ../../../jsp/modules/administer/file.jsp. However, if we want to read configuration files we need to trick Java to read our desired file, and ignore the ‘.jsp’ addition. NULL bytes (%00) do not work, however we were able to bypass the problem by adding a semicolon to our desired file.

Products Mentioned

Configuraton 0

Tibco>>Jasperreports_server >> Version To (including) 6.2.4

Tibco>>Jasperreports_server >> Version To (including) 6.4.2

Tibco>>Jasperreports_server >> Version To (including) 6.4.2

Tibco>>Jasperreports_server >> Version 6.3.0

Tibco>>Jasperreports_server >> Version 6.3.2

Tibco>>Jasperreports_server >> Version 6.3.3

Tibco>>Jasperreports_server >> Version 6.4.0

Tibco>>Jasperreports_server >> Version 6.4.2

Configuraton 0

Tibco>>Jaspersoft >> Version To (including) 6.4.2

Tibco>>Jaspersoft_reporting_and_analytics >> Version To (including) 6.4.2

References

https://www.exploit-db.com/exploits/44623/
Tags : exploit, x_refsource_EXPLOIT-DB