Description

An XML external entity (XXE) injection in PyWPS before 4.4.5 allows an attacker to view files on the application server filesystem by assigning a path to the entity. OWSLib 0.24.1 may also be affected.

INFO

Published Date :

Aug. 23, 2021, 1:15 a.m.

Last Modified :

Nov. 21, 2024, 6:19 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2021-39371 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-39371 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Osgeo owslib
2 Osgeo pywps
1 Debian debian_linux
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-39371.

URL Resource
https://github.com/geopython/OWSLib/issues/790 Issue Tracking Patch Third Party Advisory
https://github.com/geopython/pywps/pull/616 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/09/msg00001.html Mailing List Third Party Advisory
https://github.com/geopython/OWSLib/issues/790 Issue Tracking Patch Third Party Advisory
https://github.com/geopython/pywps/pull/616 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/09/msg00001.html Mailing List Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Automatic monitor github cve using Github Actions

Python

Updated: 1 month, 2 weeks ago
1 stars 57 fork 57 watcher
Born at : April 7, 2021, 11:16 a.m. This repo has been linked 1008 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-39371 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-39371 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/geopython/OWSLib/issues/790
    Added Reference https://github.com/geopython/pywps/pull/616
    Added Reference https://lists.debian.org/debian-lts-announce/2021/09/msg00001.html
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CPE Deprecation Remap by [email protected]

    Jun. 02, 2022

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:github:owslib:0.24.1:*:*:*:*:*:*:* OR *cpe:2.3:a:osgeo:owslib:0.24.1:*:*:*:*:*:*:*
  • Reanalysis by [email protected]

    Sep. 14, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:github:owslib:0.24.1:*:*:*:*:*:*:* *cpe:2.3:a:osgeo:pywps:*:*:*:*:*:*:*:* versions up to (excluding) 4.5.5 OR *cpe:2.3:a:github:owslib:0.24.1:*:*:*:*:*:*:* *cpe:2.3:a:osgeo:pywps:*:*:*:*:*:*:*:* versions up to (excluding) 4.4.5
  • Modified Analysis by [email protected]

    Sep. 14, 2021

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/09/msg00001.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/09/msg00001.html Mailing List, Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:a:github:owslib:0.24.1:*:*:*:*:*:*:* *cpe:2.3:a:osgeo:pywps:*:*:*:*:*:*:*:* versions up to (excluding) 4.5.0 OR *cpe:2.3:a:github:owslib:0.24.1:*:*:*:*:*:*:* *cpe:2.3:a:osgeo:pywps:*:*:*:*:*:*:*:* versions up to (excluding) 4.5.5
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Sep. 10, 2021

    Action Type Old Value New Value
    Changed Description An XML external entity (XXE) injection in PyWPS before 4.5.0 allows an attacker to view files on the application server filesystem by assigning a path to the entity. OWSLib 0.24.1 may also be affected. An XML external entity (XXE) injection in PyWPS before 4.4.5 allows an attacker to view files on the application server filesystem by assigning a path to the entity. OWSLib 0.24.1 may also be affected.
  • CVE Modified by [email protected]

    Sep. 04, 2021

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2021/09/msg00001.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Aug. 26, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://github.com/geopython/OWSLib/issues/790 No Types Assigned https://github.com/geopython/OWSLib/issues/790 Issue Tracking, Patch, Third Party Advisory
    Changed Reference Type https://github.com/geopython/pywps/pull/616 No Types Assigned https://github.com/geopython/pywps/pull/616 Patch, Third Party Advisory
    Added CWE NIST CWE-611
    Added CPE Configuration OR *cpe:2.3:a:github:owslib:0.24.1:*:*:*:*:*:*:* *cpe:2.3:a:osgeo:pywps:*:*:*:*:*:*:*:* versions up to (excluding) 4.5.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-39371 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-39371 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.12 }} -0.37%

score

0.45962

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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Integrity
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