CVE-2017-8761: Swift Temporary Urls Leaked Vulnerability

LOW
Advisory Identifier: GHSA-8fxc-qm65-vpxg
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CWE-200 CWE-117
Published
Advisory Summary

CVE-2017-8761 is a LOW temporary urls leaked vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Swift libraries in the PyPI ecosystem. The issue involves temporary urls leaked via logging. Remediation is available by upgrading affected packages to version 2.15.2.

CVE-2017-8761 at a Glance

CVE Identifier CVE-2017-8761
GHSA Identifier GHSA-8fxc-qm65-vpxg
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Swift
Package Ecosystem PyPI
Published Date
Last Updated

How to Fix CVE-2017-8761

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

swift fixed: 2.15.2 
pip install swift>=2.15.2
Verify Direct and Transitive Dependencies

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

pip show swift

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2017-8761, inspect your installed packages using pip:

pip show swift

Analyze the terminal output to locate any version of Swift in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.15.2), your application is affected.

Note: The pip show swift command checks currently installed packages in your active Python environment.

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 Swift, 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

In OpenStack Swift prior to 2.15.2, the proxy-server logs full tempurl paths, potentially leaking reusable tempurl signatures to anyone with read access to these logs. All Swift deployments using the tempurl middleware are affected.

CVE-2017-8761 Affected Swift Versions

1 component(s)
Fixed Versions:
2.15.2
Product / Package Ecosystem Affected Versions Fixed Version
swift
pypi/swift
PyPI
< 2.15.2
2.15.2

References

NVD — CVE-2017-8761 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-8761
bugs.launchpad.net/swift/+bug/1685798/... WEB
https://bugs.launchpad.net/swift/+bug/1685798/comments/18
launchpad.net/bugs/1685798 WEB
https://launchpad.net/bugs/1685798

Frequently Asked Questions

What is CVE-2017-8761?
CVE-2017-8761 is a security vulnerability in Swift involving Temporary urls leaked via logging under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Swift versions are affected?
Affected versions include releases prior to 2.15.2 across affected packages: swift.
What version fixes CVE-2017-8761?
Upgrading to 2.15.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is swift affected?
Yes, swift is affected in releases prior to 2.15.2. Upgrade your dependency to 2.15.2 or later.
What CWE is associated with CVE-2017-8761?
CVE-2017-8761 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 PyPI dependencies for CVE-2017-8761?
Run the dependency tree command: 'pip show swift'. 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-8fxc-qm65-vpxg",
  "modified" : "2021-06-03T21:08:32Z",
  "published" : "2021-06-08T19:23:22Z",
  "aliases" : [ "CVE-2017-8761" ],
  "summary" : "Temporary urls leaked via logging",
  "details" : "In OpenStack Swift prior to 2.15.2, the proxy-server logs full tempurl paths, potentially leaking reusable tempurl signatures to anyone with read access to these logs. All Swift deployments using the tempurl middleware are affected.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "swift"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.15.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-8761"
  }, {
    "type" : "WEB",
    "url" : "https://bugs.launchpad.net/swift/+bug/1685798/comments/18"
  }, {
    "type" : "WEB",
    "url" : "https://launchpad.net/bugs/1685798"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-117", "CWE-200" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-06-03T21:08:32Z",
    "nvd_published_at" : "2021-06-02T14:15:00Z"
  }
}