ID

VAR-201103-0090

CVE

CVE-2011-1430

TITLE

STARTTLS plaintext command injection vulnerability

DESCRIPTION

The STARTTLS implementation in the server in Ipswitch IMail 11.03 and earlier does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411. Some STARTTLS implementations could allow a remote attacker to inject commands during the plaintext phase of the protocol. This vulnerability is related to plain text command injection attacks. An attacker can exploit this issue to execute arbitrary commands in the context of the user running the application. Successful exploits can allow attackers to obtain email usernames and passwords. The following vendors are affected: Ipswitch Kerio Postfix Qmail-TLS Oracle (note that the affected application is unknown) SCO Group spamdyke ISC. Ipswitch IMail Server is an American Ipswitch company's mail server running on the Microsoft Windows operating system. SOLUTION: Restrict access to trusted hosts only. PROVIDED AND/OR DISCOVERED BY: Wietse Venema via US-CERT. ---------------------------------------------------------------------- Alerts when vulnerabilities pose a threat to your infrastructure The enhanced reporting module of the Secunia Vulnerability Intelligence Manager (VIM) enables you to combine advisory and ticket information, and generate policy compliance statistics. Using your asset list preferences, customised notifications are issued as soon as a new vulnerability is discovered - a valuable tool for documenting mitigation strategies. SOLUTION: Apply fixes. ---------------------------------------------------------------------- Get a tax break on purchases of Secunia Solutions! If you are a U.S. company, you may be qualified for a tax break for your software purchases. Learn more at: http://secunia.com/products/corporate/vim/section_179/ ---------------------------------------------------------------------- TITLE: Kerio Connect "STARTTLS" Plaintext Injection Vulnerability SECUNIA ADVISORY ID: SA43678 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/43678/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=43678 RELEASE DATE: 2011-03-12 DISCUSS ADVISORY: http://secunia.com/advisories/43678/#comments AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s) http://secunia.com/advisories/43678/ ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS https://ca.secunia.com/?page=viewadvisory&vuln_id=43678 ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI: * AUTOMATED SCANNING http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/ DESCRIPTION: A vulnerability has been reported in Kerio Connect, which can be exploited by malicious people to manipulate certain data. The vulnerability is caused due to the TLS implementation not properly clearing transport layer buffers when upgrading from plaintext to ciphertext after receiving the "STARTTLS" command. This can be exploited to insert arbitrary plaintext data (e.g. SMTP commands) during the plaintext phase, which will then be executed after upgrading to the TLS ciphertext phase. The vulnerability is reported in version 7.1.4 build 2985. Other versions may also be affected. SOLUTION: Reportedly, the vendor will fix this in an upcoming version. PROVIDED AND/OR DISCOVERED BY: Wietse Venema ORIGINAL ADVISORY: US-CERT VU#555316: http://www.kb.cert.org/vuls/id/555316 http://www.kb.cert.org/vuls/id/MAPG-8D9M4P OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ DEEP LINKS: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXPLOIT: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/advisories/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ----------------------------------------------------------------------

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

input validation

CONFIGURATIONS

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Secunia

SOURCES

LAST UPDATE DATE

2024-11-23T21:31:12.588000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE