CVE-2007-5638 Weak cryptography in n/a
Remote attackers can guess RUDP IDs to spoof messages and eavesdrop on calls due to weak entropy in the ID field.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2007-5638?
CVE-2007-5638 is a medium-severity vulnerability in n/a, published on 23 Oct 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and additional Nortel products from the IP Phone, Business Communications Manager (BCM), and other product lines, use only 65536 different values in the 32-bit ID number field of an RUDP datagram, which makes it easier for remote attackers to guess the RUDP ID and spoof messages. NOTE: this can be leveraged for an eavesdropping attack by sending many Open Audio Stream messages.
Which versions are affected by CVE-2007-5638?
It affects 9 products.
Products include Nortel Business Communications Manager, Nortel Centrex Ip Client Manager, Nortel Centrex Ip Element Manager, Nortel Meridian Option 11c, Nortel Meridian Option 51c, Nortel Meridian Option 61c and 3 more.
How do I fix CVE-2007-5638?
No fix has been published for CVE-2007-5638 yet. Limit exposure of the affected software until one is available.
Is CVE-2007-5638 being exploited?
There is no known exploitation of CVE-2007-5638 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-h59f-qgvv-5qq2.