Envoy Proxy up to 1.2.6/1.3.0 neutralization for logs

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Envoy Proxy up to 1.2.6/1.3.0. This affects an unknown part. The manipulation leads to neutralization for logs. This vulnerability is listed as CVE-2025-25294. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Envoy Proxy up to 1.2.6/1.3.0. This issue affects an unknown code. The manipulation with an unknown input leads to a neutralization for logs vulnerability. Using CWE to declare the problem leads to CWE-117. The product does not neutralize or incorrectly neutralizes output that is written to logs. Impacted is integrity. The summary by CVE is:

Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. In all Envoy Gateway versions prior to 1.2.7 and 1.3.1 a default Envoy Proxy access log configuration is used. This format is vulnerable to log injection attacks. If the attacker uses a specially crafted user-agent which performs json injection, then he could add and overwrite fields to the access log. This vulnerability is fixed in 1.3.1 and 1.2.7. One can overwrite the old text based default format with JSON formatter by modifying the "EnvoyProxy.spec.telemetry.accessLog" setting.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2025-25294 since 02/06/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.2.7 or 1.3.1 eliminates this vulnerability. Applying the patch 8f48f5199cf1bbb9a8ac0695c5171bfef6c9198a is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector (GitHub_M): 🔍

CVSSv2info

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

Exploitinginfo

Class: Neutralization for logs
CWE: CWE-117 / CWE-116 / CWE-74
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Proxy 1.2.7/1.3.1
Patch: 8f48f5199cf1bbb9a8ac0695c5171bfef6c9198a

Timelineinfo

02/06/2025 🔍
03/07/2025 +29 days 🔍
03/07/2025 +0 days 🔍
09/04/2025 +181 days 🔍

Sourcesinfo

Advisory: GHSA-mf24-chxh-hmvj
Status: Confirmed

CVE: CVE-2025-25294 (🔍)
GCVE (CVE): GCVE-0-2025-25294
GCVE (VulDB): GCVE-100-298883

Entryinfo

Created: 03/07/2025 06:51
Updated: 09/04/2025 16:51
Changes: 03/07/2025 06:51 (66), 09/04/2025 16:51 (1)
Complete: 🔍
Cache ID: 216::103

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

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