Cisco PIX up to 5.2.2 Mailguard data privileges management

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Cisco PIX up to 5.2.2. Impacted is an unknown function of the component Mailguard. The manipulation of the argument data leads to privileges management. This vulnerability is listed as CVE-2000-1022. In addition, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco PIX up to 5.2.2 (Firewall Software) and classified as critical. This issue affects some unknown processing of the component Mailguard. The manipulation of the argument data with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The mailguard feature in Cisco Secure PIX Firewall 5.2(2) and earlier does not properly restrict access to SMTP commands, which allows remote attackers to execute restricted commands by sending a DATA command before sending the restricted commands.

The weakness was presented 12/11/2000 by FIRST as not defined posting (Bugtraq). It is possible to read the advisory at archives.neohapsis.com. The identification of this vulnerability is CVE-2000-1022. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 10520 (Cisco PIX Firewall Mailguard Feature SMTP Content Filter Bypass), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Firewalls and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 74053 (Firewall SMTP Content Filtering Evasion Vulnerability).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (5277), Exploit-DB (20231), Tenable (10520), SecurityFocus (BID 1698†) and Vulnerability Center (SBV-289†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10520
Nessus Name: Cisco PIX Firewall Mailguard Feature SMTP Content Filter Bypass
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/19/2000 🔍
10/04/2000 +15 days 🔍
12/11/2000 +68 days 🔍
12/11/2000 +0 days 🔍
12/11/2000 +0 days 🔍
12/08/2002 +727 days 🔍
06/30/2014 +4222 days 🔍
10/11/2025 +4121 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: archives.neohapsis.com
Researcher: FIRST
Status: Confirmed

CVE: CVE-2000-1022 (🔍)
GCVE (CVE): GCVE-0-2000-1022
GCVE (VulDB): GCVE-100-16043
X-Force: 5277 - Cisco PIX Firewall \
SecurityFocus: 1698 - Cisco PIX Firewall SMTP Content Filtering Evasion Vulnerability
Vulnerability Center: 289 - [cisco-sa-20010926-pix-firewall-smtp-filter] Cisco PIX mailguard cmd exec, High

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/30/2014 16:52
Updated: 10/11/2025 23:32
Changes: 06/30/2014 16:52 (71), 05/06/2019 07:15 (1), 09/21/2024 19:24 (25), 10/11/2025 23:32 (4)
Complete: 🔍
Cache ID: 216::103

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

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