Perl up to 2.16 Rijandel CBC Encryption Crypt::CBC cleartext storage

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Perl up to 2.16. It has been declared as problematic. The impacted element is the function Crypt::CBC of the component Rijandel CBC Encryption Handler. The manipulation results in cleartext storage. This vulnerability is cataloged as CVE-2006-0898. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Perl up to 2.16 (Programming Language Software). Affected is the function Crypt::CBC of the component Rijandel CBC Encryption Handler. The manipulation with an unknown input leads to a cleartext storage vulnerability. CWE is classifying the issue as CWE-312. The product stores sensitive information in cleartext within a resource that might be accessible to another control sphere. This is going to have an impact on confidentiality, and integrity. CVE summarizes:

Crypt::CBC Perl module 2.16 and earlier, when running in RandomIV mode, uses an initialization vector (IV) of 8 bytes, which results in weaker encryption when used with a cipher that requires a larger block size than 8 bytes, such as Rijndael.

The bug was discovered 02/23/2006. The weakness was shared 02/27/2006 by Lincoln Stein (Website). The advisory is shared for download at search.cpan.org. This vulnerability is traded as CVE-2006-0898 since 02/25/2006. Access to the local network is required for this attack to succeed. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1555.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 21096 (GLSA-200603-15 : Crypt::CBC: Insecure initialization vector), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at search.cpan.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (24954), Tenable (21096), SecurityFocus (BID 16802†), OSVDB (23513†) and Secunia (SA20899†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 4.7

VulDB Base Score: 5.4
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Cleartext storage
CWE: CWE-312 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 21096
Nessus Name: GLSA-200603-15 : Crypt::CBC: Insecure initialization vector
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 56403
OpenVAS Name: Debian Security Advisory DSA 996-1 (libcrypt-cbc-perl)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: search.cpan.org

Timelineinfo

02/23/2006 🔍
02/24/2006 +1 days 🔍
02/25/2006 +1 days 🔍
02/25/2006 +0 days 🔍
02/25/2006 +0 days 🔍
02/27/2006 +2 days 🔍
02/27/2006 +0 days 🔍
02/28/2006 +0 days 🔍
03/13/2006 +13 days 🔍
03/18/2006 +5 days 🔍
03/21/2006 +3 days 🔍
06/15/2019 +4834 days 🔍

Sourcesinfo

Advisory: search.cpan.org
Researcher: Lincoln Stein
Status: Confirmed

CVE: CVE-2006-0898 (🔍)
GCVE (CVE): GCVE-0-2006-0898
GCVE (VulDB): GCVE-100-2064
X-Force: 24954 - Crypt::CBC RandomIV header and Rijndael cipher weak encryption, Low Risk
SecurityFocus: 16802 - Lincoln D. Stein Crypt::CBC Perl Module Weak Ciphertext Vulnerability
Secunia: 20899 - SUSE Updates for Multiple Packages, Moderately Critical
OSVDB: 23513 - Crypt::CBC RandomIV Header IV Header Encryption Weakness
Vulnerability Center: 10728 - Crypt::CBC Perl Module Weak Encryption when Running in RandomIV Mode, Medium

Entryinfo

Created: 02/28/2006 16:39
Updated: 06/15/2019 17:42
Changes: 02/28/2006 16:39 (93), 06/15/2019 17:42 (1)
Complete: 🔍
Cache ID: 216:7BF:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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