CVE-2008-1618

View on CVE.org

Published Apr 7, 2008 CVSS 2.0 · 5.0 Medium EPSS 1.7% KEV · Not listed

Description

The PPTP VPN service in Watchguard Firebox before 10, when performing the MS-CHAPv2 authentication handshake, generates different error codes depending on whether the username is valid or invalid, which allows remote attackers to enumerate valid usernames.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:watchguard:firebox_pptp_vpn:4.9:::::::*
	cpe:2.3:a:watchguard:firebox_pptp_vpn:5.0:::::::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2008-1619	The PPTP VPN service in Watchguard Firebox before 10, when performing the MS-CHAPv2 authentication handshake, generates different error codes depending on whether the username is valid or invalid, which allows remote attackers to enumerate valid usernames.

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: 1.7% (1.738% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
http://secunia.com/advisories/29708
http://www.mwrinfosecurity.com/publications/mwri_watchguard-firebox-pptp-vpn-user-enumeration-advisory_2008-04-04.pdf
http://www.osvdb.org/44218
http://www.securityfocus.com/bid/28619
http://www.securitytracker.com/id?1019796
http://www.vupen.com/english/advisories/2008/1152/references
https://exchange.xforce.ibmcloud.com/vulnerabilities/41683

History

No history.

Subscriptions

Watchguard Firebox Pptp Vpn

Weaknesses

CWE-200

Sources

CVE record Updated: Aug 7, 2024, 8:24 AM

Status: PUBLISHED
Assigner: mitre
Published: Apr 7, 2008, 6:00 PM
Updated: Aug 7, 2024, 8:24 AM
Reserved: Apr 2, 2008, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 16, 2026, 10:52 PM

Status: Modified
Published: Apr 7, 2008, 6:44 PM
Modified: Jun 16, 2026, 10:52 PM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2008-04-04T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "The PPTP VPN service in Watchguard Firebox before 10, when performing the MS-CHAPv2 authentication handshake, generates different error codes depending on whether the username is valid or invalid, which allows remote attackers to enumerate valid usernames."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2017-08-07T12:57:01.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "http://www.mwrinfosecurity.com/publications/mwri_watchguard-firebox-pptp-vpn-user-enumeration-advisory_2008-04-04.pdf"}, {"name": "44218", "tags": ["vdb-entry", "x_refsource_OSVDB"], "url": "http://www.osvdb.org/44218"}, {"name": "ADV-2008-1152", "tags": ["vdb-entry", "x_refsource_VUPEN"], "url": "http://www.vupen.com/english/advisories/2008/1152/references"}, {"name": "28619", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/28619"}, {"name": "firebox-pptpvpn-mschapv2-info-disclosure(41683)", "tags": ["vdb-entry", "x_refsource_XF"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41683"}, {"name": "29708", "tags": ["third-party-advisory", "x_refsource_SECUNIA"], "url": "http://secunia.com/advisories/29708"}, {"name": "1019796", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id?1019796"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2008-1618", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The PPTP VPN service in Watchguard Firebox before 10, when performing the MS-CHAPv2 authentication handshake, generates different error codes depending on whether the username is valid or invalid, which allows remote attackers to enumerate valid usernames."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "http://www.mwrinfosecurity.com/publications/mwri_watchguard-firebox-pptp-vpn-user-enumeration-advisory_2008-04-04.pdf", "refsource": "MISC", "url": "http://www.mwrinfosecurity.com/publications/mwri_watchguard-firebox-pptp-vpn-user-enumeration-advisory_2008-04-04.pdf"}, {"name": "44218", "refsource": "OSVDB", "url": "http://www.osvdb.org/44218"}, {"name": "ADV-2008-1152", "refsource": "VUPEN", "url": "http://www.vupen.com/english/advisories/2008/1152/references"}, {"name": "28619", "refsource": "BID", "url": "http://www.securityfocus.com/bid/28619"}, {"name": "firebox-pptpvpn-mschapv2-info-disclosure(41683)", "refsource": "XF", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41683"}, {"name": "29708", "refsource": "SECUNIA", "url": "http://secunia.com/advisories/29708"}, {"name": "1019796", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id?1019796"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-07T08:24:42.935Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://www.mwrinfosecurity.com/publications/mwri_watchguard-firebox-pptp-vpn-user-enumeration-advisory_2008-04-04.pdf"}, {"name": "44218", "tags": ["vdb-entry", "x_refsource_OSVDB", "x_transferred"], "url": "http://www.osvdb.org/44218"}, {"name": "ADV-2008-1152", "tags": ["vdb-entry", "x_refsource_VUPEN", "x_transferred"], "url": "http://www.vupen.com/english/advisories/2008/1152/references"}, {"name": "28619", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/28619"}, {"name": "firebox-pptpvpn-mschapv2-info-disclosure(41683)", "tags": ["vdb-entry", "x_refsource_XF", "x_transferred"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41683"}, {"name": "29708", "tags": ["third-party-advisory", "x_refsource_SECUNIA", "x_transferred"], "url": "http://secunia.com/advisories/29708"}, {"name": "1019796", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://www.securitytracker.com/id?1019796"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2008-1618", "datePublished": "2008-04-07T18:00:00.000Z", "dateReserved": "2008-04-02T00:00:00.000Z", "dateUpdated": "2024-08-07T08:24:42.935Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:watchguard:firebox_pptp_vpn:4.9:*:*:*:*:*:*:*", "matchCriteriaId": "74232A36-AA69-4E9E-9226-CFF4CFECB6C0", "vulnerable": true}, {"criteria": "cpe:2.3:a:watchguard:firebox_pptp_vpn:5.0:*:*:*:*:*:*:*", "matchCriteriaId": "53E189B5-EE45-4E2E-A87F-A8BBD414AAA9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The PPTP VPN service in Watchguard Firebox before 10, when performing the MS-CHAPv2 authentication handshake, generates different error codes depending on whether the username is valid or invalid, which allows remote attackers to enumerate valid usernames."}, {"lang": "es", "value": "El servicio PPTP VPN en Watchguard Firebox versiones anteriores a 10, al realizar la negociaci\u00f3n de autenticaci\u00f3n MS-CHAPv2, genera diferentes c\u00f3digos de error dependiendo de si el nombre de usuario es v\u00e1lido o no v\u00e1lido, lo que permite a los atacantes remotos enumerar nombres de usuario comprobados."}], "id": "CVE-2008-1618", "lastModified": "2026-06-16T22:52:06.640", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2008-04-07T18:44:00.000", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/29708"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Patch"], "url": "http://www.mwrinfosecurity.com/publications/mwri_watchguard-firebox-pptp-vpn-user-enumeration-advisory_2008-04-04.pdf"}, {"source": "cve@mitre.org", "url": "http://www.osvdb.org/44218"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/28619"}, {"source": "cve@mitre.org", "url": "http://www.securitytracker.com/id?1019796"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://www.vupen.com/english/advisories/2008/1152/references"}, {"source": "cve@mitre.org", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41683"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/29708"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Patch"], "url": "http://www.mwrinfosecurity.com/publications/mwri_watchguard-firebox-pptp-vpn-user-enumeration-advisory_2008-04-04.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.osvdb.org/44218"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/28619"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securitytracker.com/id?1019796"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://www.vupen.com/english/advisories/2008/1152/references"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41683"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "nvd@nist.gov", "type": "Primary"}]}