Eric Allman Sendmail 8.6.10 Mail From improper authentication

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.
9.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Eric Allman Sendmail 8.6.10. This affects an unknown part of the component Mail From Handler. The manipulation leads to improper authentication. This vulnerability is uniquely identified as CVE-1999-0203. There is no exploit available. Due to its background and reception, this vulnerability has an historic impact. It is recommended to upgrade the affected component. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Detailsinfo

A vulnerability was found in Eric Allman Sendmail 8.6.10 (Mail Server Software). It has been rated as very critical. Affected by this issue is an unknown function of the component Mail From Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

in sendmail attackers can gain root privileges via smtp by specifying an improper "mail from" address and an invalid "rcpt to" address that would cause the mail to bounce to a program.

The weakness was released 08/17/1995. This vulnerability is handled as CVE-1999-0203. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/23/2021). This vulnerability has a historic impact due to its background and reception.

The vulnerability scanner Nessus provides a plugin with the ID 10258 (Sendmail MAIL FROM Command Arbitrary Remote Command Execution), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SMTP problems.

Upgrading eliminates this vulnerability. Attack attempts may be identified with Snort ID 662.

The vulnerability is also documented in the databases at X-Force (518), Tenable (10258), SecurityFocus (BID 2308†) and Vulnerability Center (SBV-230†). Entry connected to this vulnerability is available at VDB-13707. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 10258
Nessus Name: Sendmail MAIL FROM Command Arbitrary Remote Command Execution
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Snort ID: 662
Snort Message: SERVER-MAIL Sendmail 5.5.5 exploit
Snort Class: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍

Timelineinfo

08/17/1995 🔍
08/17/1995 +0 days 🔍
08/17/1995 +0 days 🔍
08/22/1999 +1466 days 🔍
11/25/2002 +1191 days 🔍
06/17/2014 +4222 days 🔍
06/23/2021 +2562 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-1999-0203 (🔍)
GCVE (CVE): GCVE-0-1999-0203
GCVE (VulDB): GCVE-100-13706
X-Force: 518
SecurityFocus: 2308
Vulnerability Center: 230 - Buffer Overflow in Sendmail, High

See also: 🔍

Entryinfo

Created: 06/17/2014 16:33
Updated: 06/23/2021 01:35
Changes: 06/17/2014 16:33 (57), 07/03/2017 09:11 (9), 06/23/2021 01:35 (3)
Complete: 🔍
Cache ID: 216:3E3:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!