Grichter Apache::SessionX up to 2.01 on Perl Default Session ID Generator rand generation of predictable numbers or identifiers

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Grichter Apache::SessionX up to 2.01 on Perl. The impacted element is the function rand of the component Default Session ID Generator. Performing a manipulation results in generation of predictable numbers or identifiers. This vulnerability is cataloged as CVE-2025-40932. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Grichter Apache::SessionX up to 2.01 on Perl. This affects the function rand of the component Default Session ID Generator. The manipulation with an unknown input leads to a generation of predictable numbers or identifiers vulnerability. CWE is classifying the issue as CWE-340. The product uses a scheme that generates numbers or identifiers that are more predictable than required. This is going to have an impact on confidentiality. The summary by CVE is:

Apache::SessionX versions through 2.01 for Perl create insecure session id. Apache::SessionX generates session ids insecurely. The default session id generator in Apache::SessionX::Generate::MD5 returns a MD5 hash seeded with the built-in rand() function, the epoch time, and the PID. The PID will come from a small set of numbers, and the epoch time may be guessed, if it is not leaked from the HTTP Date header. The built-in rand function is unsuitable for cryptographic usage. Predicable session ids could allow an attacker to gain access to systems.

The weakness was shared by Robert Rothenberg. The advisory is shared at metacpan.org. This vulnerability is uniquely identified as CVE-2025-40932 since 04/16/2025. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for 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 300157 (Linux Distros Unpatched Vulnerability : CVE-2025-40932), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at CNNVD (CNNVD-202602-4603) and Tenable (300157). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.9

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

ADP CISA Base Score: 8.2
ADP CISA Vector: 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Generation of predictable numbers or identifiers
CWE: CWE-340 / 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: 🔒

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Nessus ID: 300157
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-40932

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/16/2025 CVE reserved
02/27/2026 +317 days Advisory disclosed
02/27/2026 +0 days VulDB entry created
03/02/2026 +3 days VulDB entry last update

Sourcesinfo

Advisory: metacpan.org
Researcher: Robert Rothenberg
Status: Not defined

CVE: CVE-2025-40932 (🔒)
GCVE (CVE): GCVE-0-2025-40932
GCVE (VulDB): GCVE-100-348069
CNNVD: CNNVD-202602-4603 - Apache::SessionX 安全漏洞

Entryinfo

Created: 02/27/2026 07:24
Updated: 03/02/2026 12:28
Changes: 02/27/2026 07:24 (55), 02/28/2026 16:55 (6), 03/01/2026 14:51 (1), 03/01/2026 16:49 (12), 03/02/2026 12:28 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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