Apport prior 2.20.11-0ubuntu67 on Ubuntu apport/hookutils.py read_file symlink

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Apport on Ubuntu. This vulnerability affects the function read_file of the file apport/hookutils.py. This manipulation causes symlink. This vulnerability is handled as CVE-2021-32554. It is possible to launch the attack on the local host. Additionally, an exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apport on Ubuntu and classified as critical. Affected by this vulnerability is the function read_file of the file apport/hookutils.py. The manipulation with an unknown input leads to a symlink vulnerability. The CWE definition for the vulnerability is CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 06/12/2021. It is possible to read the advisory at bugs.launchpad.net. This vulnerability is known as CVE-2021-32554. Technical details and also a public exploit are known.

It is possible to download the exploit at bugs.launchpad.net. It is declared as proof-of-concept.

Upgrading to version 2.20.11-0ubuntu67 eliminates this vulnerability. The upgrade is hosted for download at bugs.launchpad.net.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Symlink
CWE: CWE-61 / CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Apport 2.20.11-0ubuntu67

Timelineinfo

05/10/2021 🔍
06/12/2021 +33 days 🔍
06/12/2021 +0 days 🔍
06/14/2021 +2 days 🔍

Sourcesinfo

Advisory: bugs.launchpad.net
Status: Confirmed

CVE: CVE-2021-32554 (🔍)
GCVE (CVE): GCVE-0-2021-32554
GCVE (VulDB): GCVE-100-176971
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/12/2021 10:53
Updated: 06/14/2021 15:03
Changes: 06/12/2021 10:53 (43), 06/14/2021 14:59 (2), 06/14/2021 15:03 (1)
Complete: 🔍
Cache ID: 216::103

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