CVE-2016-0956: Org.apache.sling.servlets.post Exposure Of Sensitive Information To Vulnerability

HIGH
Advisory Identifier: GHSA-m27m-628v-xxp2
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CVSS 7.5
CWE-200
Published
Advisory Summary

CVE-2016-0956 is a HIGH (CVSS 7.5) exposure of sensitive information to vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Org.apache.sling.servlets.post libraries in the Maven ecosystem. The issue involves exposure of sensitive information to an unauthorized actor in apache sling servlets post. Remediation is available by upgrading affected packages to version 2.3.8.

CVE-2016-0956 at a Glance

CVE Identifier CVE-2016-0956
GHSA Identifier GHSA-m27m-628v-xxp2
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Org.apache.sling.servlets.post
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2016-0956

To remediate this vulnerability, upgrade all affected Org.apache.sling.servlets.post dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.apache.sling:org.apache.sling.servlets.post fixed: 2.3.8 
<dependency>
    <groupId>org.apache.sling</groupId>
    <artifactId>org.apache.sling.servlets.post</artifactId>
    <version>2.3.8</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.apache.sling

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2016-0956, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.sling

Analyze the terminal output to locate any version of Org.apache.sling.servlets.post in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.3.8), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.sling command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Org.apache.sling.servlets.post, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

The Servlets Post component 2.3.6 in Apache Sling, as used in Adobe Experience Manager 5.6.1, 6.0.0, and 6.1.0, allows remote attackers to obtain sensitive information via unspecified vectors.

CVE-2016-0956 Affected Org.apache.sling.servlets.post Versions

1 component(s)
Fixed Versions:
2.3.8
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.sling:org.apache.sling.servlets.post
maven/org.apache.sling/org.apache.sling.servlets.post
Maven
< 2.3.8
2.3.8

References

NVD — CVE-2016-0956 NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-0956
Org.apache.sling.servlets.post Security Information SECURITY
https://helpx.adobe.com/security/products/experience-manager/apsb16-05.html
www.exploit-db.com/exploits/39435 WEB
https://www.exploit-db.com/exploits/39435
Org.apache.sling.servlets.post Security Information SECURITY
http://packetstormsecurity.com/files/135720/Apache-Sling-Framework-2.3.6-Information-Disclosure.html
seclists.org/fulldisclosure/2016... WEB
http://seclists.org/fulldisclosure/2016/Feb/48
Org.apache.sling.servlets.post Security Information SECURITY
http://www.securityfocus.com/archive/1/537498/100/0/threaded

Frequently Asked Questions

What is CVE-2016-0956?
CVE-2016-0956 is a security vulnerability in Org.apache.sling.servlets.post involving Exposure of Sensitive Information to an Unauthorized Actor in Apache Sling Servlets Post under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Org.apache.sling.servlets.post versions are affected?
Affected versions include releases prior to 2.3.8 across affected packages: org.apache.sling:org.apache.sling.servlets.post.
What version fixes CVE-2016-0956?
Upgrading to 2.3.8 (or the latest patched release for your respective branch) resolves the vulnerability.
Is org.apache.sling.servlets.post affected?
Yes, org.apache.sling:org.apache.sling.servlets.post is affected in releases prior to 2.3.8. Upgrade your dependency to 2.3.8 or later.
What is the CVSS score of CVE-2016-0956?
CVE-2016-0956 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2016-0956?
CVE-2016-0956 is classified under 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.).
How can I check Maven dependencies for CVE-2016-0956?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.sling'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-m27m-628v-xxp2",
  "modified" : "2022-07-06T20:05:20Z",
  "published" : "2022-05-14T02:47:05Z",
  "aliases" : [ "CVE-2016-0956" ],
  "summary" : "Exposure of Sensitive Information to an Unauthorized Actor in Apache Sling Servlets Post",
  "details" : "The Servlets Post component 2.3.6 in Apache Sling, as used in Adobe Experience Manager 5.6.1, 6.0.0, and 6.1.0, allows remote attackers to obtain sensitive information via unspecified vectors.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.sling:org.apache.sling.servlets.post"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.3.8"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2.3.6"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2016-0956"
  }, {
    "type" : "WEB",
    "url" : "https://helpx.adobe.com/security/products/experience-manager/apsb16-05.html"
  }, {
    "type" : "WEB",
    "url" : "https://www.exploit-db.com/exploits/39435"
  }, {
    "type" : "WEB",
    "url" : "http://packetstormsecurity.com/files/135720/Apache-Sling-Framework-2.3.6-Information-Disclosure.html"
  }, {
    "type" : "WEB",
    "url" : "http://seclists.org/fulldisclosure/2016/Feb/48"
  }, {
    "type" : "WEB",
    "url" : "http://www.securityfocus.com/archive/1/537498/100/0/threaded"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-07-06T20:05:20Z",
    "nvd_published_at" : "2016-02-10T20:59:00Z"
  }
}