Sun Solaris 10.0/11.0 in.telnetd code injection

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.
7.7$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Sun Solaris 10.0/11.0. This affects an unknown function of the component in.telnetd. This manipulation causes code injection. This vulnerability appears as CVE-2007-0882. In addition, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Sun Solaris 10.0/11.0 (Operating System). It has been declared as critical. Affected by this vulnerability is an unknown code of the component in.telnetd. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Argument injection vulnerability in the telnet daemon (in.telnetd) in Solaris 10 and 11 (SunOS 5.10 and 5.11) misinterprets certain client "-f" sequences as valid requests for the login program to skip authentication, which allows remote attackers to log into certain accounts, as demonstrated by the bin account.

The issue has been introduced in 01/31/2005. The weakness was presented 02/13/2007 by kcope (Website). It is possible to read the advisory at sunsolve.sun.com. This vulnerability is known as CVE-2007-0882 since 02/12/2007. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

After before and not just, there has been an exploit disclosed. It is possible to download the exploit at exploit-db.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 742 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 24323 (Solaris 10 Forced Login Telnet Authentication Bypass), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gain a shell remotely. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38574 (Solaris 10 and Solaris 11 (SolarisExpress) Remote Access Telnet Daemon Flaw).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at sunsolve.sun.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 10136. In this case the pattern |FF FA| is used for detection. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 5121.

The vulnerability is also documented in the databases at X-Force (32434), Exploit-DB (3293), Tenable (24323), SecurityFocus (BID 22512†) and OSVDB (31881†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.1
VulDB Temp Score: 7.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 24323
Nessus Name: Solaris 10 Forced Login Telnet Authentication Bypass
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Saint ID: exploit_info/solaris_telnetd_auth
Saint Name: Solaris telnetd authentication bypass

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: fuser.rb
MetaSploit Name: Sun Solaris Telnet Remote Authentication Bypass Vulnerability
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: sunsolve.sun.com

Snort ID: 10136
Snort Message: TELNET Solaris login environment variable authentication bypass attempt
Snort Pattern: 🔍

Suricata ID: 2003411
Suricata Class: 🔍
Suricata Message: 🔍

TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

01/31/2005 🔍
02/10/2007 +740 days 🔍
02/12/2007 +2 days 🔍
02/12/2007 +0 days 🔍
02/12/2007 +0 days 🔍
02/12/2007 +0 days 🔍
02/12/2007 +0 days 🔍
02/12/2007 +0 days 🔍
02/12/2007 +0 days 🔍
02/13/2007 +0 days 🔍
02/13/2007 +0 days 🔍
02/13/2007 +0 days 🔍
02/13/2007 +0 days 🔍
02/15/2007 +2 days 🔍
06/13/2025 +6693 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: sunsolve.sun.com⛔
Researcher: kcope
Status: Confirmed

CVE: CVE-2007-0882 (🔍)
GCVE (CVE): GCVE-0-2007-0882
GCVE (VulDB): GCVE-100-2923

OVAL: 🔍
IAVM: 🔍

CERT: 🔍
X-Force: 32434 - Sun Solaris telnet authentication bypass, High Risk
SecurityFocus: 22512 - Sun Solaris Telnet Remote Authentication Bypass Vulnerability
Secunia: 24120 - Sun Solaris "in.telnetd" Authentication Bypass, Moderately Critical
OSVDB: 31881 - Solaris Forced Login in.telnetd Authentication Bypass
SecurityTracker: 1017625 - Solaris in.telnetd Grants Access to Remote Users
Vulnerability Center: 14255 - Solaris 10 and 11 Allows Remote Root Access Without Authentication via Telnet, Critical
Vupen: ADV-2007-0560

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

Entryinfo

Created: 02/15/2007 11:33
Updated: 06/13/2025 14:32
Changes: 02/15/2007 11:33 (106), 07/03/2017 09:07 (14), 03/15/2021 09:06 (3), 08/22/2024 23:51 (15), 01/25/2025 17:30 (1), 06/13/2025 14:32 (2)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!