VDB-301841 · CVE-2025-1860 · Nessus 233559

Zefram Data::Entropy up to 0.007 on Perl rand weak prng

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.6	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Zefram Data::Entropy up to 0.007 on Perl. Affected by this issue is the function rand. The manipulation leads to weak prng. This vulnerability is documented as CVE-2025-1860. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Zefram Data::Entropy up to 0.007 on Perl. It has been rated as problematic. This issue affects the function rand. The manipulation with an unknown input leads to a weak prng vulnerability. Using CWE to declare the problem leads to CWE-338. The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong. Impacted is confidentiality. The summary by CVE is:

Data::Entropy for Perl 0.007 and earlier use the rand() function as the default source of entropy, which is not cryptographically secure, for cryptographic functions.

The weakness was released by Robert Rothenberg. The advisory is shared at perldoc.perl.org. The identification of this vulnerability is CVE-2025-1860 since 03/03/2025. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1600.001 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 233559 (Debian dla-4100 : libdata-entropy-perl - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.008 eliminates this vulnerability. The upgrade is hosted for download at metacpan.org.

The vulnerability is also documented in the vulnerability database at Tenable (233559). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Zefram

Name

Data::Entropy

Version

0.007

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Weak prng
CWE: CWE-338 / CWE-331 / CWE-330
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 233559
Nessus Name: Debian dla-4100 : libdata-entropy-perl - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Data::Entropy 0.008

Timelineinfo

03/03/2025 🔍
03/28/2025 +25 days 🔍
03/28/2025 +0 days 🔍
05/12/2025 +45 days 🔍

Sourcesinfo

Advisory: perldoc.perl.org
Researcher: Robert Rothenberg
Status: Confirmed

CVE: CVE-2025-1860 (🔍)
GCVE (CVE): GCVE-0-2025-1860
GCVE (VulDB): GCVE-100-301841

Entryinfo

Created: 03/28/2025 07:01
Updated: 05/12/2025 19:13
Changes: 03/28/2025 07:01 (58), 03/31/2025 20:35 (2), 05/12/2025 19:13 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.